CEMİL TUNÇ (Prof. Dr.)

Full Address:

Department of Mathematics

Faculty of Sciences

Van Yuzuncu Yil University

65080, Van, Turkey

E-mail: cemiltunc@yyu.edu.tr

cemtunc@yahoo.com

tunccemil@gmail.com

Website: www.yyu.edu.tr

Education:

PhD, Institute of Science, Erciyes University,

(Dissertation Title: Some stability and boundedness results for two class of certain differential

equations of fourth order), 1993, Kayseri, TURKEY.

MS, Institute of Science, Erciyes University, (Masters Thesis Title: On the stability of solutions

of ordinary differential equations), 1990, Kayseri, TURKEY.

BS, Department of Mathematics, Faculty of Sciences

Atatürk University, 1982, Erzurum, TURKEY.

Experience:

Head of Department of Mathematics, 2007-Present

Dean of Faculty of Sciences, May 2011-August 2017.

Deputy Dean of Faculty of Sciences, September 2017-Present

Visiting Professor, University of Tennessee, Chattanooga, USA, June 2013-September 2013.

Visiting Professor, Jiaxing University, Jiaxing, PR China, December 2015-January 2016.

Research Interests:

Stability, instability, boundedness, asymptotic behaviors, oscillation, non-oscillation of

solutions, periodic solutions, almost periodic solutions, pseudo almost periodic solutions,

degree theory, fixed point theory, population dynamics, Lyapunov functions, Lyapunov

functionals, qualitative properties Ordinary Differential Equations, Functional Differential

Equations, Fractional Differential Equations, Partially Differential Equations, Integro-

Differential Equations, Functional Integro-Differential Equations, Integral Equations,

Functional Integral Equations.

Publications:

[284] Slinʹko, V. I., Tunç, C., Global asymptotic stability of nonlinear periodic impulsive

Equations. Autom. Remote Control, (2018), (accepted).

https://link.springer.com/journal/10513

[283] Biçer, E., Tunç, C., New theorems for Hyers-Ulam stability of Lienard equation with

varable time lags, Int. J. Math. Comput. Sci., 13 (2018), no. 2, 231–242.

http://ijmcs.future-in-tech.net/13.2/R-Tunc-Bicer.pdf

[282] Tunç, C., Tunç, O., New results on behaviors of functional Voltera integro-differential

equations with multiple time-lags. Jordan J. Math. Stat., (2018), (in press).

http://journals.yu.edu.jo/jjms/

[281] Khan, H., Tunç, C., Chen, W., Khan, A., Existence theorems and Hyers-Ulam stability

for a class of Hybrid fractional differential equations with p-Laplacian operator. J. Appl. Anal.

Comput. (2018), (in press).

http://jaac.ijournal.cn/

[280] Mahmoud, A.M.; Tunç, C., A new result on the stability of a stochastic differential

equation of third-order with a time-lag. J. Egyptian Math. Soc., (2018), (accepted).

[279] Tunç, C.; Mohammed, S.A., Uniformly boundedness in nonlinear Volterra integro-

differential equations with delay J. Appl. Nonlinear Dyn., (2018), (accepted).

https://lhscientificpublishing.com/Journals/JAND-Default.aspx

[278] Biçer, E., Tunç, C.; On the asymptotic btability behaviours of solutions of non-linear

differential equations with multiple variable advanced arguments. J. Appl. Nonlinear Dyn.,

(2018), (accepted).

https://lhscientificpublishing.com/Journals/JAND-Default.aspx

[277] Tunç, C., On the instability of nonlinear functional differential equations of fifth order.

Bol. Mat., 24(2), (2017), 155-168.

http://revistas.unal.edu.co/index.php/bolma

[276] Altun, Y., Tunç, C. , On the global stability of a neutral differential equation with variable

time-lags. Bull. Math. Anal. Appl. 9 (2017), no. 4, 31–41.

https://www.emis.de/journals/BMAA

[275] M. B. Zada, M. Sarwar, C. Tunç, Fixed point theorems in b-metric spaces and theirs

applications to non-linear fractional differential and integral equations. J. Fixed Point Theory

Appl. 20 (2018), no. 1, 20:25.

https://link.springer.com/journal/11784

[274] Tunç, C., Mohammed, S.A., On the stability and uniform stability of retarded integro-

differential equations. Alexandria Engineering Journal. (2018), (in press).

http://www.journals.elsevier.com/alexandria-engineering-journal/

[273] Tunç, C., Tunç, O., New results on the stability, integrability and boundedness in Volterra

integro-differential equations. Bull. Comput. Appl. Math. 6(1),(2018),41-58.

http://www.compama.co.usb.ve/

[272] Tunç, C., Tunç, O., On behaviors of functional Volterra integro-differential equations

with multiple time-lags. Journal of Taibah University for Science, (2018), (in press).

http://www.journals.elsevier.com/journal-of-taibah-university-for-science/

[271] Biçer, R., Tunç, C., On the Hyers -Ulam stability of Laguerre and Bessel equations by

Laplace transform method. Nonlinear Dyn. Syst. Theory. 17 (4) (2017), 340-346.

http://www.e-ndst.kiev.ua/

[270] Yazgan, R., Tunç, C., On the weighted pseudo almost periodic solutions of nonlinear

functional Duffing equation. Appl. Math. Inf. Sci. (AMIS). 11 (46), (2017),1609-1614.

http://naturalspublishing.com/show.asp

[269] Shoaib, M., Sarwar, M.; Tunç, C., Coupled fixed point theorem for multi-valued mapping

via generalized contraction in partially ordered metric spaces with applications. J. Math. Anal.

8 (2017), no.5, 27–39.

http://www.ilirias.com/jma/

[268] Tunç, C., Tunç, O., On the exponential study of solutions of Volterra integro-differential

equations with time lag. Electron. J. Math. Anal. Appl. 6 (2018), no. 1, 253–265.

http://fcag-egypt.com/Journals/EJMAA/

[267] Tunç, C., On the qualitative behaviors of a functional differential equation of second

order. Appl. Appl. Math. 12 (2017), no. 2, 813–2842.

http://www.pvamu.edu/aam

[266] Shah, K., Tunç, C., Existence theory and stability analysis to a system of boundary value

problem. Journal of Taibah University for Science. 11 (6), (2017), 1330-1342.

http://www.journals.elsevier.com/journal-of-taibah-university-for-science/

[265] Tunç, C., Ayhan , T., On the global existence and boundedness of solutions of a certain

integro vector differential equation of second order. J. Math. Fundam. Sci.,50 (2018), no. 1,

(2018), (in press).

http://journals.itb.ac.id/index.php/jmfs

[264] Tunç, C., Ayhan , T., Continuability and boundedness of solutions for a kind of

nonlinear delay integro-differential equations of third order. Nelīnīĭnī Koliv. 20 (2017), no. 3,

411-422.

https://www.imath.kiev.ua/~nosc/web/

[263] Tunç, C., Mohammed, S. A., A remark on the stability and boundedness criteria in

retarded Volterra integro-differential equations. J. Egyptian Math. Soc. 25 (2017), no. 4, 363–

368.

http://www.sciencedirect.com/science/journal/1110256X

[262] Gözen, M., and Tunç, C., A note on the exponential stability of linear systems with

variable retardations. Appl. Math. Inf. Sci. (AMIS). 11 (3), (2017), 899-906.

http://naturalspublishing.com/show.asp

[261] Tunç, C., Asymptotic stability and boundedness criteria for nonlinear retarded Volterra

integro-differential equations. Journal of King Saud University – Science, (2017), (in press).

https://www.journals.elsevier.com/journal-of-king-saud-university-science/

[260] Gözen, M., and Tunç, C., Stability in functional integro-differential equations of second

order with variable delay, J. Math. Fundam. Sci. 49 (1), (2017), 66-89.

http://journals.itb.ac.id/index.php/jmfs

[259] Tunç, C., Mohammed, S. A. , New results on exponential stability of nonlinear Volterra

integro-differential equations with constant time-lag, Proyecciones 36 (2017), no. 4, 615-639.

http://www.scielo.cl/scielo.php?script=sci_serial&pid=0716-0917

[258] Tunç, C., Mohammed, S. A., On the stability and instability of functional Volterra

integro-differential equations of first order. Bull. Math. Anal. Appl. 9 (2017), no.1, 151-160.

https://www.emis.de/journals/BMAA

[257] R. P. Agarwal, R. R. Mahmoud, S. H. Saker, C. Tunç, New generalizations of Németh-

Mohapatra type inequalities on time scales. Acta Math. Hungar. 152 (2017), no. 2, 383–403.

http://link.springer.com/journal/10474

[256] Tunç, C., Erdur, S., On the existence of periodic solutions to certain non-linear differential

equations of third order. Proceedings of the Pakistan Academy of Sciences: A. Physical and

Computational Sciences 54 (2): 207–218 (2017).

www.paspk.org/proceedings/

[255] Tunç, C., Altun, Y., On the nature of solutions of neutral differential equations with

periodic coefficients. Appl. Math. Inf. Sci. (AMIS). 11, (2017), no.2, 393-399.

http://naturalspublishing.com/show.asp

[254] Biçer, E., Tunç, C., On the Hyers-Ulam stability of certain partial differential equations

of second order. Nonlinear Dyn. Syst. Theory. 17 (2) (2017) 150–157.

http://www.e-ndst.kiev.ua/

[253] Yazgan, R., Tunç, C., Atan, Ö., On the global asymptotic stability of solutions to neutral

equations of first order. Palestine Journal of Mathematics. Vol. 6(2) (2017), 542–550

http://pjm.ppu.edu/

[252] Korkmaz, E., Tunç, C., Boundedness and square integrability of solutions of nonlinear

fourth-order differential equations with bounded delay. Electronic Journal of Differential

Equations, Vol. 2017 (2017), No. 47, pp. 1-13.

http://ejde.math.txstate.edu/

[251] Tunç, C., Tunç, O., A note on the stability and boundedness of solutions to non-linear

differential systems of second order. Journal of the Association of Arab Universities for Basic

and Applied Sciences, Vol. 24, (2017), 169-175.

http://ees.elsevier.com/jaaubas/

[250] Golmankhaneh, A.K., Tunc, C., On the Lipschitz condition in the fractal calculus. Chaos

Solitons Fractals 95 (2017), 140–147.

http://www.journals.elsevier.com/chaos-solitons-and-fractals/

[249] Tunç, C., On qualitative properties in Volterra integro-differential equations. AIP

Conference Proceedings 1798 (1), (2017), Article number 020164, 9pp.

http://scitation.aip.org/content/aip/proceeding/aipcp

[248] Tunç, C., Ayhan, T., Global existence and boundedness in a certain nonlinear integro-

differential equation of second order. Dyn. Contin. Discrete Impuls. Syst. Ser. A Math. Anal.

24 (2017), no. 1, 69–77.

http://www.watam.org/

[247] Tunç, C., On the qualitative behaviors of nonlinear functional differential systems of third

order. Advances in nonlinear analysis via the concept of measure of noncompactness, 421–

439, Springer, Singapore, 2017.

[246] Tunc, C., Dinç, Y., Qualitative properties of certain non-linear differential systems of

second order. Journal of Taibah University for Science 11 (2017), no.2, 359–366.

http://www.journals.elsevier.com/journal-of-taibah-university-for-science/

[245] Tunc, C., Qualitative properties in nonlinear Volterra integro-differential equations with

delay. Journal of Taibah University for Science 11 (2017), no.2, 309–314.

http://www.journals.elsevier.com/journal-of-taibah-university-for-science/

[244] Tunc, C., Gozen, M., On exponential stability of solutions of neutral differential systems

with multiple variable. Electron. J. Math. Anal. Appl. 5 (2017), no. 1, 17–31.

http://fcag-egypt.com/Journals/EJMAA/

[243] Korkmaz, E.; Tunc, C., Inequalities and exponential decay of certain differential

equations of first order in time varying delay. Dynam. Systems Appl. 26 (2017) 157-166.

http://www.dynamicpublishers.org/journals/index.php/DSA/author/submission/124

[242] Tunc, C., Stability and boundedness in Volterra-integro differential equations with

delays. Dynam. Systems Appl. 26 (2017) 121-130.

http://www.dynamicpublishers.org/journals/index.php/DSA/author/submission/124

[241] Tunç, C., Stability and boundedness in delay system of differential equations of third

order. Journal of the Association of Arab Universities for Basic and Applied Sciences. 22 (1),

(2017), 76-82.

http://www.journals.elsevier.com/journal-of-the-association-of-arab-universities-for-basic-

and-applied-sciences/

[240] Tunc, C., Stability and boundedness in differential systems of third order with variable

delay. Proyecciones 35 (2016), no. 3, 317–338.

http://www.scielo.cl/scielo.php?pid=0716-0917&script=sci_issues

[239] Tunç, C., Altun, Y., Asymptotic stability in neutral differential equations with multiple

delays. J. Math. Anal. 7 (2016), no. 5, 40–53

http://91.187.98.171/ilirias/jma/

[238] Tunç,C., On the existence of periodic solutions of functional differential equations of the

third order. Appl. Comput. Math. 15 (2016), no. 2, 189–199.

http://www.acmij.az/

[237] Tunc, C., Properties of solutions to Volterra integro-differential equations with delay.

Appl. Math. Inf. Sci. 10 (2016), no. 5, 1775-1780.

http://naturalspublishing.com/show.asp?JorID=1

[236] Ayhan, T., Tunc, C., On the global existence and boundedness of solutions of nonlinear

vector differential equations of third order. Appl. Appl. Math. 11 (2016), no. 1, 152–161.

http://www.pvamu.edu/aam

[235] Alam, Nur Md., Tunc, C., An analytical method for solving exact solutions of the

nonlinear Bogoyavlenskii equation and the nonlinear diffusive predator–prey system.

Alexandria Engineering Journal. 11 (2016), no. 1, 152–161

http://www.journals.elsevier.com/alexandria-engineering-journal/

[234] Tunc, C., Ates, M., Instability of certain nonlinear differential equations of fifth order.

J. Indones. Math. Soc.22 (1), (2016), 83-91.

http://www.jims-a.org/

[233] Graef, J. Tunc, C., Sevgin, S., Behaviors of solutions of nonlinear functional

Volterra integro-differential equations with multiple delays. Dynam. Systems Appl. 25

(2016), no. 1-2, 39–46.

http://www.dynamicpublishers.org/journals/index.php/DSA/author/submission/124

[232] Tunc, C., Ayhan, T., Global existence and boundedness of solutions of a certain

nonlinear integro differential equation of second order with multiple deviating arguments.

Journal of Inequalities and Applications, (2016), 1-7, 2016: 46 .

http://jiap.edmgr.com/

[231] Talib, I., Asif, N.A., Tunc, C., Coupled lower and upper solution approach for the

existence of solutions of nonlinear coupled system with nonlinear coupled boundary conditions.

Proyecciones. Journal of Mathematics 35 (2016), no. 1, 99–117.

http://www.scielo.cl/scielo.php?pid=0716-0917&script=sci_issues

[230] Talib, I., Asif, N.A.; Tunç, C., Existence of Solution for Second Order nonlinear

Coupled System with Nonlinear Coupled Boundary Conditions. Electronic Journal of

Differential Equations. Vol. 2015 (2015), no. 313, 1-11.

http://ejde.math.txstate.edu/

[229] Tunc, C., Instability in multi delay functional differential equations of fourth order. Fasc.

Math. 55 (2015), no. 2, 184-189.

http://www.math.put.poznan.pl/fasci_en.htm

[228] Tunc, C., Global stability and boundedness of solutions to differential equations of third

order with multiple delays. Dynam. Systems Appl. 24 (2015), 467-478.

http://www.dynamicpublishers.org/journals/index.php/DSA/author/submission/124

[227] Korkmaz, E.; Tunc, C., On some qualitative behaviors of certain differential equations

of fourth order with multiple retardations. J. Appl. Anal. Comput. 6 (2016), no.2, 336-349.

http://jaac-online.com/

[226] Tunc, C., New stability and boundedness results to Volterra integro-differential equations

with delay. J. Egyptian Math. Soc. 24 (2016), no. 2, 210–213.

http://www.sciencedirect.com/science/journal/1110256X

[225] Mahmoud, A.M.; Tunc, C., Stability and boundedness of solutions of a certain n-

dimensional nonlinear delay differential system of third-order. Adv. Pure Appl. Math. 7(1),

(2016), 1-11.

http://www.degruyter.com/view/j/apam

[224] Asif, N.A.; Talib, I.; Tunç, C., Existence of solution for first order coupled system with

nonlinear coupled boundary conditions. Bound. Value Probl. (2015) 2015:134, 1-9.

http://www.boundaryvalueproblems.com/

[223] Tunç, C., Pseudo almost periodic solutions for HCNNs with time-varying leakage delays.

Moroccan J. Pure and Appl. Anal. 1 (2015), no.1, 51-69.

http://www.springer.com/globalsciencejournals/mjpaa

[222] Tunç, C.; Ayhan, T., On the global existence and boundedness of solutions to a nonlinear

integro-differential equations of second order. J. Interpolat. Approx. Sci. Comput. (2015), no.1,

1-14.

http://ispacs.com/jiasc/

[221] Bicer, E., Tunç, C., On the existence of periodic solutions to non-linear neutral differential

equations of first order with multiple delays. Proc. Pakistan Acad. Sci. 52 (1), (2015), 79-84.

http://www.paspk.org/Proceedings.php

[220] Tunç, C., On the stability and boundedness of certain third order non-autonomous

differential equations of retarded type. Proyecciones. Journal of Mathematics 34 (2015), no. 2,

147-159.

http://www.scielo.cl/scielo.php?pid=0716-0917&script=sci_issues

[219] Tunç, C., Boundedness of solutions to certain system of differential equations with

multiple delays. Mathematical modeling and applications in nonlinear dynamics, 109–123,

Nonlinear Syst. Complex., Springer, Cham, 2016.

[218] Ergoren, H.; Tunç, C., A general boundary value problem for impulsive fractional

differential equations. Palest. J. Math. 5(2016), no. 1, 65–78.

http://pjm.ppu.edu/

[217] Tunç, C., Bicer, E., Hyers-Ulam-Rassias stability for a first order functional differential

equation. J. Math. Fundam. Sci. Vol. 47, No. 2, (2015), 143-153.

http://journal.itb.ac.id/index.php

[216] Tunç, C.,Tunç, O., On the boundedness and integration of non-oscillatory solutions of

certain linear differential equations of second order. Journal of Advanced Research. 7 (1),

(2016), 165-168.

http://www.journals.elsevier.com/journal-of-advanced-research/

[215] Tunç, C.; Liu, B., Global stability of pseudo almost periodic solutions for a Nicholson's

blowflies model with a harvesting term. Vietnam J. Math. 44 (2016), no. 3, 485–494.

http://link.springer.com/journal/10013

[214] Tunç, C., A note on the qualitative behaviors of non-linear Volterra integro-differential

equation. J. Egyptian Math. Soc. 24 (2016), no. 2, 187–192.

http://www.sciencedirect.com/science/journal/1110256X

[213] Tunç, C., Convergence of solutions of nonlinear neutral differential equations with

multiple delays. Bol. Soc. Mat. Mex.21 (2015), 219–231.

http://www.springer.com/birkhauser/mathematics/journal/40590

[212] Tunç, C., Instability to vector Liénard equation with multiple delays. Cubo A

Mathematical Journal 17(1), (2015), 1-9.

http://www.scielo.cl/scielo.php?script=sci_serial&pid=0719-0646&lng=en&nrm=iso

[211] Liu, B.; Tunç, C., Pseudo almost periodic solutions for CNNs with leakage delays and

complex deviating arguments. Neural Computing and Applications. 26 (2),(2015), 429-435.

http://www.springer.com/computer/ai/journal/521

[210] Liu, B.; Tunç, C., Pseudo almost periodic solutions for a class of nonlinear Duffing

system with a deviating argument. J. Appl. Math. Comput. 49 (2015), 233-242.

http://link.springer.com/journal/12190

[209] Graef, John R.; Tunç, C., Global asymptotic stability and boundedness of certain multi‐delay functional differential equations of third order. Math. Methods Appl. Sci. 38 (2015), no.

17, 3747–3752.

http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1099-1476/issues

[208] Liu, B.; Tunç, C., Pseudo almost periodic solutions for a class of first order differential

iterative equations. Appl. Math. Lett. 40 (2015) 29–34.

http://www.sciencedirect.com/science/journal/08939659

[207] Korkmaz, E.; Tunç, C., Convergence of solutions to differential equations of fourth

order. Stability and boundedness to certain differential equations of fourth order with multiple

delays. Filomat 28:5 (2014), 1049–1058.

http://www.pmf.ni.ac.rs/pmf/publikacije/filomat/filomat_pocetna.php

[206] Tunç, C.; Tunç, O., A note on certain qualitative properties of a second order linear

differential system. Appl. Math. Inf. Sci. 9 (2015), No. 2, 953-956 .

http://naturalspublishing.com/show.asp?JorID=1

[205] Graef, John R.; Tunç, C., Continuability and boundedness of multi-delay functional

integro-differential equations of the second order. Rev. R. Acad. Cienc. Exactas Fís. Nat. Ser.

A Math. RACSAM 109 (2015), no. 1, 169–173.

http://www.springer.com/mathematics/journal/13398

[204] Tunç, C.; Mohammed, S.A., On the qualitative properties of differential equations of third

order with retarded argument. Proyecciones.33 (2014), no. 3, 325-347.

http://www.scielo.cl/scielo.php?pid=0716-0917&script=sci_issues

[203] Korkmaz, E.; Tunç, C., Convergence of solutions to differential equations of fourth

order. Nonlinear Dyn. Syst. Theory 14 (3) (2014) 312–321.

http://www.e-ndst.kiev.ua/v14n2.htm

[202] Tunç, C., Unstable Solutions to Nonlinear Vector Differential Equations of Sixth Order

with Delay. Appl. Appl. Math. 9 (2014), no. 1, 330–341.

http://www.pvamu.edu/aam

[201] Tunç, C.; Biçer, E., Stability to a kind of functional differential equations of second

order with multiple delays by fixed points. Abstr. Appl. Anal. Volume 2014, Article ID 413037,

9 pages.

http://www.hindawi.com/journals/aaa/

[200] Tunç, C., Instability of a fifth order non-linear vector delay differential equation with

multiple deviating arguments. U.P.B. Sci. Bull., Series A, Vol. 76, Iss. 1, 155-162, (2014).

http://www.scientificbulletin.upb.ro/SeriaA_-_Matematica_si_fizica_aplicate.php

[199] Tunç, C.; Ayhan, T., On the asymptotic behaviors of solutions to nonlinear differential

equations of second order. Comment. Math., (2015), (in press).

http://www.staff.amu.edu.pl/~commath/

[198] Tunç, C., On the stability to a functional Lienard type equation with variable delay by

fixed points theory. Appl. Math. Inf. Sci. (AMIS). 9, no. 1, (2015), 463-472.

http://naturalspublishing.com/show.asp?JorID=1

[197] Korkmaz, E.; Tunç, C., Convergence to non-autonomous differential equations of

second order. J. Egyptian Math. Soc. 23 (2015), no. 1, 27–30.

http://www.sciencedirect.com/science/journal/1110256X

[196] Tunç, C.; Gözen, M., Convergence of solutions to a certain vector differential equation

of third order. Abstr. Appl. Anal., Volume 2014, Article ID 424512, (2014), 6 pages.

http://www.hindawi.com/journals/aaa/

[195] Tunç, C., A note on the bounded solutions to ).()()(),,( tfxbtqxxtcx Appl. Math. Inf. Sci. (AMIS). 8(1), 2014, 393-399.

http://naturalspublishing.com/show.asp?JorID=1

[194] Tunç, C.; New results on the existence of periodic solutions for Rayleigh equation with

state-dependent delay. J. Math. Fund. Sci. Vol. 45, No. 2, (2013), 154-162.

http://journal.itb.ac.id/

[193] Tunç, C.; Yazgan, R., Existence of periodic solutions to multi-delay functional

differential equations of second order. Abstract and Applied Analysis. Volume 2013 (2013),

Article ID 968541, 5 pages.

http://www.hindawi.com/journals/aaa/

[192] Tunç, C.; Ergören, H., Boundedness of the solution set for a fourth-order nonlinear

differential equation with multiple deviating arguments. Acta Univ. M. Belii Ser. Math. Issue

2014, pp. 13-20.

http://actamath.savbb.sk/

[191] Tunç, C.; Ateş, M., Boundedness of solutions to differential equations of fourth order

with oscillatory restoring and forcing terms. Discrete Dyn. Nat. Soc. Volume 2013 (2013),

Article ID 758796, 5 pages.

http://www.hindawi.com/journals/ddns/

[190] Tunç, C., Unstable solutions to a class of vector differential equations of sixth order. Ann.

Differential Equations 30 (2014), no. 3, 253–257.

http://www.oriprobe.com/journals/caod_4318.html

[189] Tunç, C., Instability to differential equations of fifth and sixth order with variable

deviating arguments. Ann. Differential Equations 30 (2014), no. 4, 379–385.

http://www.oriprobe.com/journals/caod_4318.html

[188] Tunç, C., On the instability of solutions to a Liénard type equation with multiple deviating

arguments. Afr. Mat. 25 (2014), no. 4, 1013–1021.

http://link.springer.com/journal/13370

[187] Tunç, C., On the instability of a kind of vector functional differential equations of the

eighth order with multiple deviating arguments. Proyecciones. Journal of Mathematics. 32 (3),

(2013), 245-258

http://www.scielo.cl/scielo.php?pid=0716-0917&script=sci_issues

[186] Tunç, C., Instability to differential equations of fourth order with a variable deviating

argument. J. Math. Appl. 36 (2013), 113-119.

http://jma.prz.rzeszow.pl/jma/

[185] Tunç, C., Instability to nonlinear vector differential equations of fifth order with

constant delay. J. Math. Appl. 36 (2013), 123-130

http://jma.prz.rzeszow.pl/jma/

[184] Tunç, C., On the uniform asymptotic stability to certain first order neutral differential

equations. Cubo. A Mathematical Journal, Vol.16, No. 2, (2014), 111–119.

http://www.dmat.ufpe.br/CUBO/pg/download.html

[183] Tunç, C., and Gözen, M., Stability and uniform boundedness in multi delay functional

differential equations of third order. Abstract and Applied Analysis. Volume 2013, Article ID

248717, 7 pages, 2013. doi:10.1155/2013/248717.

http://www.hindawi.com/journals/aaa/

[182] Tunç, C., Stability and boundedness in multi delay Lienard equation. Filomat. 27 (3)

(2013), 437-447.

http://operator.pmf.ni.ac.rs/www/pmf/publikacije/filomat/filomat_pocetna.php

[181] Ergoren, H., Tunç, C., Anti-Periodic Solutions for a Class of Fourth-Order Nonlinear

Differential Equations with Multiple Deviating Arguments. Azerb. J. Math. 3 (1), (2013), 111-

126.

http://azjm.org/index.php/azjm/

[180] Tunç, C., Biçer, E., On the Hyers-Ulam stability of non-homogeneous Euler equations of

third and fourth order. Scientific Research and Essays. 8 (5), (2013), 220 -226.

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[179] Tunç, C., Stability to vector Lienard equation with constant deviating argument.

Nonlinear Dynam. 73 (3), 2013, 1245-1251.

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[178] Tunç, C., Instability to nonlinear vector differential equations of fourth order with

constant delay. Sains Malaysiana. 42 (7) (2013): 999-1002.

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[177] Tunç, C., A note on the stability and boundedness of non-autonomous differential

equations of second order with a variable deviating argument. Afr. Mat. 25 (2014), no. 2, 417–

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[176] Tunç, C., Qualitative behaviors of functional differential equations of third order with

multiple deviating arguments. Abstr. Appl. Anal. 2012, Article ID 392386, (2012), 12 pp.

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[175] Tunç, C., Instability of solutions of vector Lienard equation with constant delay. Bull.

Math. Soc. Sci. Math. Roumanie. 59(107) (2016), no. 2, 197–204

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[174] Tunç, C., New results on the stability and boundedness of nonlinear differential equations

of fifth order with multiple deviating arguments. Bull. Malays. Math. Sci. Soc. (2), (2012), (in

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[173] Tunç, C., Instability of non-linear functional differential equations of fifth order. ITB J.

Sci. 44 A (2012), no.3, 240-252.

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[172] Tunç, C., On the qualitative behaviors of solutions of some differential equations of

higher order with multiple deviating arguments. J. Franklin Inst. 351 (2014) 643–655.

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[171] Tunç, C., Instability of a fifth order non-linear vector delay differential equation with

multiple deviating arguments. Journal of Mathematics. Volume 2013 (2013), Article ID

809748, 5 pages.

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[170] Tunç, C., On the unstable solutions to functional vector differential equations of the

seventh order. Int. J. Anal. 2013, Art. ID 973917, 5 pp..

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[169] Korkmaz, E.; Tunç, C., On the convergence of solutions of some nonlinear differential

equations of fifth order. Nonlinear Analysis Forum 17 (2012), 123-139.

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[168] Tunç, C., Stability and boundedness for a kind of non-autonomous differential equations

with constant delay. Appl. Math. Inf. Sci. (AMIS). 7(1), 2013, 355-361

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[167] Tunç, C., An instability result to a certain vector differential equation of the sixth order.

Applied Mathematics (Irvine), 2012, 3, 997-1000.

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[166] Tunç, C., Existence of periodic solutions to nonlinear differential equations of third order

with multiple deviating arguments. Int. J. Differ. Equ. 2012, Article ID 406835, 13 pp.

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[165] Tunç, C., Instability of solutions for nonlinear functional differential equations of fifth

order with n-deviating arguments. Bul. Acad. Ştiinţe Repub. Mold. Mat. 68 (2012), no. 1, 3-

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[164] Tunç, C., Instability of a nonlinear differential equation of fifth order with variable delay.

Int. J. Comput. Math. Sci. 6 (2012), 73-75.

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[163] Tunç, C., Stability and uniform boundedness results for non-autonomous Liénard-type

equations with a variable deviating argument. Acta Math. Vietnam. 37 (2012), no. 3, 311-326.

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[162] Alzabut, J. and Tunç, C., Existence of periodic solutions for a type of Rayleigh equation

with state-dependent delay. Electron. J. Diff. Equ., Vol. 2012 (2012), No. 77, pp. 1-8.

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[161] Tunç, C., Asymptotic stability of solutions of a class of neutral differential equations

with multiple deviating arguments. Bull. Math. Soc. Sci. Math. Roumanie. Tome 57(105), no.

1, 2014, 121–130.

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[160] Tunç, C., Stability and boundedness of the nonlinear differential equations of third order

with multiple deviating arguments. Afr. Mat., (2012), (in press).

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[159] Tunç, C., Instability of solutions for nonlinear differential equations of eighth order with

multiple deviating arguments. J. Appl. Math. & Informatics. 30 (2012), no. 5-6, pp. 741 -748.

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[158] Tunç, C. and Ergoren, H., Uniformly boundedness of a class of non-linear differential

equations of third order with multiple deviating arguments. Cubo, A Mathematical Journal,

14(3) (2012), 63-69.

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[157] Tunç, C., Instability for nonlinear differential equations of fifth order subject to delay.

Nonlinear Dyn. Syst. Theory 12 (2) (2012) 207-214.

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[156] Tunç, C., On the boundedness of solutions of a kind of non-autonomous differential

equations of second order with finitely many deviating arguments. Filmot, (2012), (in press).

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[155] Tunç, C., Instability criteria for solutions of a delay differential equation of sixth order.

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[154] Tunç, C., Altun, M., On the integrability of solutions of non-autonomous differential

equations of second order with multiple variable deviating arguments. J. Comput. Anal. Appl.

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[153] Tunç, C., Instability for a certain functional differential equation of sixth order. J.

Indones. Math. Soc. 17 (2), (2011), 123-128.

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[152] Tunç, C., On the uniform boundedness of solutions of Liénard type equations with

multiple deviating arguments. Carpathian J. Math. 27 (2011), no. 2, 269 - 275.

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[151] Tunç, C., On the stability and boundedness of solutions of a class of Liénard equations

with multiple deviating arguments. Vietnam J. Math. 39 (2011), no. 2, 177-190.

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[150] Tunç, C., Stability, boundedness and uniform boundedness of solutions of nonlinear

delay differential equations. Discrete Contin. Dyn. Syst. Sup. (2011) 1395-1403.

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[149] Tunç, C., Instability result of a fifth order non-linear delay system. Optoelectronics and

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[148] Tunç, C., On the stability and boundedness of solutions of a class of nonautonomous

differential equations of second order with multiple deviating arguments. Afr. Mat. 23 (2012),

no.2, 249-259,

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[147] Tunç, C., New boundedness results for solutions of second order non-autonomous delay

differential equations. Journal of Optoelectronics and Advanced Materials. 13 (2011), ,no.3,

302-307.

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[146] Tunç, C., An instability theorem for a certain sixth order nonlinear delay differential

equation. J. Egyptian Math. Soc. 20 (2012), 43-45.

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[145] Tunç, C., An instability theorem for a certain fifth-order delay differential equation,

Filomat, 25 (2011), no. 3, 145-151.

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[144] Tunç, C., Uniformly stability and boundedness of solutions of second order nonlinear

delay differential equations. Appl. Comput. Math., Vol. 10, No.3, (2011), 449-462.

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[143] Tunç, C., On the instability of solutions of an eighth order nonlinear differential

equation of retarded type. Proyecciones. Journal of Mathematics. 30 (2011), no.1, 43-50.

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[142] Tunç, C., On the Instability of Solutions of Nonlinear Delay Differential Equations of

Fourth and Fifth Order. Sains Malaysiana 40 (12), (2011), 1455-1459.

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[141] Tunç, C., An instability theorem for a kind of seventh order nonlinear delay differential

equations. Ann. Differential Equations 28 (2012), no.1, 11-14.

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[140] Tunç, C., An instability theorem for solutions of a kind of eighth order nonlinear delay

differential equations. World Applied Sciences Journal 12 (5): 619-623, 2011.

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[139] Tunç, C., On the instability of solutions of seventh order nonlinear delay differential

equations. Bul. Acad. Ştiinţe Repub. Mold. Mat. 1 (65), (2011), 60-65.

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[138] Tunç, C., On the instability of solutions of a nonlinear vector differential equation of

fourth order. Ann. Differential Equations. 27 (2011), no. 4, 418-421.

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[137] Tunç, C., On the boundedness of solutions of a non-autonomous differential equation of

second order. Sarajevo J. Math. 7 (2011), no.1, 19-29.

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[136] Tunç, C., On the instability of solutions of some fifth order nonlinear delay differential

equations. Appl. Math. Inf. Sci. (AMIS),5 (2011), no.1, 112-121.

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[135] Tunç, C.; Ayhan, T., New boundedness results for a kind of nonlinear differential

equations of third order. J. Comput. Anal. Appl. 13 (2011), no. 3, 477-484.

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[134] Tunç, C.; Korkmaz, E., On the convergence of solutions of some nonlinear differential

equations of third order. J. Comput. Anal. Appl. 13 (2011), no. 3, 470-476.

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[133] Tunç, C., Recent advances on instability of solutions of fourth and fifth order delay

differential equations with some open problems. World Scientific Review, Vol. 9,

World Scientific Series on Nonlinear Science Series B (Book Series), (2011), 105-116.

[132] Tunç, C., On the qualitative behaviors of some delay differential equations of higher

order. J. Franklin Inst. 348 (2011) 1404-1415.

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[131] Tunç, C., Stability and boundedness of solutions of non-autonomous differential

equations of second order. J. Comput. Anal. Appl. 13 (2011), no. 6, 1067-1074.

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[130] Tunç, C., On the stability and boundedness of solutions in a class of nonlinear differential

equations of fourth order with constant delay. Vietnam J. Math. 38:(4) (2010), 453-466.

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[129] Tunç, C., Boundedness results for solutions of certain nonlinear differential equations of

second order. J. Indones. Math. Soc. 16 (2010), no.2, 115-128.

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[128] Tunç, C., On the instability solutions of some nonlinear vector differential equations of

fourth order. Miskolc Mathematical Notes. 11 (2010), no.2, 191-200.

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[127] Tunç, C., Stability and bounded of solutions to non-autonomous delay differential

equations of third order. Nonlinear Dynam. 62 (2010), no.4, 945-953.

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[126] Tunç, C., A note on boundedness of solutions to a class of non-autonomous differential

equations of second order. Appl. Anal. Discrete Math. 4 (2010), 361-372.

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[125] Tunç, C., New stability and boundedness results of solutions of Liénard type equations

with multiple deviating arguments. J. Contemp. Math. Anal. 45 (2010), no.3, 47-56.

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[124] Tunç, C., On some qualitative behaviors of solutions to a kind of third order nonlinear

delay differential equations. Electron. J. Qual. Theory Differ. Equ., No. 12. (2010), pp. 1-19.

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[123] Tunç, C., On the stability of solutions of nonlinear differential equations of fifth order

with delay. Math. Commun. Vol. 15, No. 1, pp. 261-272 (2010).

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[122] Tunç, C., On the stability of solutions of non-autonomous differential equations of fourth

order with delay. Funct. Differ. Equ. Vol. 17,(2010), No.1-2, 195-212

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[121] Sirma, A., Tunç, C., Sözen, S., Existence and uniqueness of periodic solutions for a kind

of Rayleigh equation with finitely many deviating arguments. Nonlinear Analysis. Theory,

Methods & Applications. Series A: Theory and Methods, 73, No. 2, 358-366 (2010).

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[120] Tunç, C., Asymptotic stability of nonlinear neutral differential equations with constant

delays: A descriptor system approach. Ann. Differential Equations 27 (2011), no. 1, 1-8.

[119] Tunç, C., Boundedness analysis for certain two-dimensional differential systems via a

Lyapunov approach. Bulletin Mathématique de la Société des Sciences Mathématiques de

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[118] Tunç, C., Boundedness in third order nonlinear differential equations with bounded delay.

Bol. Mat. Bol. 16(1), (2009), 1-10.

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[117] Tunç, C.; Ergoren, H. , On the boundedness of a certain nonlinear differential equation

of third order. Journal of Computational Analysis and Applications, Vol.12, No.3, (2010), 687-

694.

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[116] Tunç, C.; Sirma, A., Stability analysis of a class of generalized neutral equations. J.

Comput. Anal. Appl. 12 (2010), no. 4, 754-759.

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[115] Tunç, C., On the qualitative behaviors of solutions to a kind of nonlinear third order

differential equations with a retarded argument. An. Ştiinţ. Univ. ``Ovidius'' Constanţa Ser.

Mat. 17 (2), (2009), 215-230.

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[114] Mustafa, O. G. and Tunç, C., Asymptotically linear solutions of differential equations

via Lyapunov functions. Appl. Math. Comput. 215 (8), (2009), 3076-3081.

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[113] Tunç, C., On the stability and boundedness of solutions of nonlinear third order

differential equations with delay. Filomat 24 (2010), no. 3, 1-10.

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[112] Tunç, C., Some stability and boundedness conditions for non-autonomous differential

equations with deviating arguments. Electron. J. Qual. Theory Differ. Equ., No. 1, (2010), 1-

12.

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[111] Tunç, C., Some new stability and boundedness results of solutions of Liénard type

equations with deviating argument, Nonlinear Analysis: Hybrid Systems, 4 (1), (2010), 85-91.

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[110] Tunç, C., On the qualitative behaviors of solutions to a kind of nonlinear third order

differential equations with retarded argument. Italian Journal of Pure and Applied

Mathematics, (2010), (in press).

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[109] Tunç, C., The boundedness of solutions to nonlinear third order differential equations.

Nonlinear Dynamics and Systems Theory. 10 (1), (2010), 97-102.

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[108] Tunç, C., Bound of solutions to third order nonlinear differential equations with bounded

delay. J. Franklin Inst. 347 (2010), no. 2, 415-425.

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[107] Tunç, C., On existence of periodic solution to certain nonlinear third order differential

equations. Proyecciones (Antofagasta) vol.28 , no.2, (2009), 125-132.

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[106] Tunç, C., On the stability of solutions for non-autonomous delay differential equations

of third order. Iranian Journal of Science and Technology. Transaction A. Science, Vol.32, No.

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[105] Tunç, C., Asymptotic stable and bounded solutions of a kind of nonlinear differential

equations with variable delay. Funct. Differ. Equ. Vol. 17, No 3-4, (2010), 345-354.

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[104] Tunç, C., On the non-existence of non-trivial periodic solutions to a class of non-linear

differential equations of eighth order. Bull. Malays. Math. Sci. Soc. (2) 32 (3)(2009), 307-311.

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[103] Tunç, C., On the existence of periodic solutions to nonlinear third order ordinary

differential equations with delay. J. Comput. Anal. Appl.12 (1), (2010), 191-201.

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[102] Tunç, C., and Ateş, M., Boundedness and stability of solutions of a kind of nonlinear

third order differential equations. J. Appl. Funct. Anal. 5 (2010), no. 3, 242-250.

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[101] Tunç, C., The bounded solutions to nonlinear fifth-order differential equations with

delay. Computational & Applied Mathematics , Vol 28, No 2, (2009), 1-18.

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[100] Tunç, C., A new boundedness result to nonlinear differential equations of third order

with finite lag, Communications in Applied Analysis 13 (2009), no.1, 1-10.

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[99] Tunç, C., A new result on the boundedness of solutions to a nonlinear differential equation

of fifth-order with delay. Kuwait Journal of Science and Engineering, 36 (1A), (2009), 15-31.

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[98] Tunç, C., On the stability and boundedness of solutions to third order nonlinear differential

equations with retarded argument. Nonlinear Dynam. 57 (2009), no. 1-2, 97-106.

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[97] Tunç, C., Some stability and boundedness results to nonlinear differential equations of

Liénard type with finite delay. Journal of Computational Analysis and Applications (JoCAAA),

Vol. 11, No. 4, 711-727, (2009).

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[96] Tunç, C., Boundedness criteria for certain third order nonlinear delay differential

equations. Journal of Concrete and Applicable Mathematics (JCAAM), Vol.7, No. 2, , 126-

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[95] Tunç, C.; Karakas, B., On boundedness of solutions to nonlinear vector differential

equations of third-order. Nonlinear Stud. 18 (2011), no. 1, 63-73.

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[94] Tunç, C.; Karta, M., A new instability result to nonlinear vector differential equations of

fifth order, Discrete Dynamics in Nature and Society, Volume 2008 (2008), Article ID 971534,

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[93] Tunç, C., Bounded solutions to nonlinear delay differential equations of third order.

Topological Methods in Nonlinear Analysis, Volume: 34 Issue: 1, 131-139, (2009)

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[92] Tunç, C.; Cinar, E. I., On the existence of periodic solutions to nonlinear differential

equations of second order. Differ. Uravn. Protsessy Upr. (Differential Equations and Control

Processes, No 3., 1-6, (2008).

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[91] Tunç, C., Some new results on the boundedness of solutions of a certain non-linear

differential equation of third order. Int. J. Nonlinear Sci. 7 (2009), no. 2, 246-256.

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[90] Tunç, C., On the existence of periodic solutions to a certain fourth-order nonlinear

differential equation. Ann. Differential Equations 25 (2009), no. 1, 8-12.

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[89] Tunç, C., The boundedness to nonlinear differential equations of fourth order with delay.

Nonlinear Studies, Vol 17, No 1, (2010), 47-56.

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[88] Tunç, C., A theorem on the boundedness of solutions of fifth order nonlinear differential

equations with delay Ann. Sci. Math. Québec 31 (2007), no 2, 193-209

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[86] Tunç, C., A new result on the stability of solutions of a nonlinear differential equation of

third-order with finite lag. Southeast Asian Bulletin of Mathematics (2009) Vol. 33 (5): 947-

958.

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[85] Tunç, C., On the Boundedness of Solutions of Delay Differential Equations of Third

Order. Arab. J. Sci. Eng. Sect. A Sci., 34 (2009), no. 1, 227-237.

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[84] Tunç, C., On the stability and boundedness of solutions of nonlinear vector differential

equations of third-order. Nonlinear Analysis Series A: Theory, Methods & Applications, (in

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[83] Tunç, C., A further result on the instability of solutions to a class of non-autonomous

ordinary differential equations of sixth order, Applications and Applied Mathematics, Vol.3,

No.1, 2008.

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Portugaliae Mathematica. Vol. 66, No.1, 71-80, (2009).

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[81] Tunç, E. and Tunç, C. On the instability of solutions of certain sixth-order nonlinear

differential equations. Nonlinear Studies, 15 (3), (2008), 207-214.

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[80] Tunç, C. A boundedness criterion for fourth order nonlinear ordinary differential

equations with delay. International Journal of Nonlinear Science (IJNS), 6(3), (2008), 195-

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[79] Tunç, C. On the boundedness of solutions of delay differential equations of third order,

Differential Equations (Differ. Uravn.), Tom 44, No. 4, 446-454, (2008).

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[78] Tunç, C. Further results on the instability of solutions of certain nonlinear vector

differential equations of fifth order. Applied Mathematics & Information Sciences, 2(1) (2008),

51-60.

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[77] Tunç, C. A new boundedness theorem for a class of second order differential equations.

Arabian Journal for Science and Engineering, AJSE, Volume 33, Number 1A, (2008), 83-92.

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[76] Tunç, C. On the instability of solutions to a certain class of non-autonomous and non-

linear ordinary vector differential equations of sixth order. Albanian J. Math. 2, No. 1, 7-16,

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[75] Tunç, C. On the stability of solutions to a certain fourth-order delay differential equation,

Nonlinear Dynamics, Volume 49, Numbers 1-2, (2008), 71-81.

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[74] Tunç, C., On the periodic solutions of a certain nonlinear vector differential equation of

fourth-order, Bulletin of the Institute of Mathematics Academia Sinica, New Series, vol.3, no.

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[73] Tunç, C., On the boundedness of solutions of nonlinear differential equations of fifth-

order with delay, Proceedings of Dynamic Systems and Applications, 5 (2008), 466-473.

[72] Tunç, C. Stability and boundedness of solutions of nonlinear differential equations of

third-order with delay, Journal Differential Equations and Control Processes

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[71] Tunç, C. On asymptotic stability of solutions to third order nonlinear differential equations

with retarded argument, Communications in Applied Analysis, 11 (2007), no. 4, 518-528.

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[70] Tunç, C. Instability of solutions for certain nonlinear vector differential equations of fourth

order, Nonlinear Oscillations 12 (2009 ), No. 1, pp. 120-129.

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[69] Tunç, C. and Erdoğan, F. On the instability of solutions of certain non-autonomous vector

differential equations of fifth order, SUT Journal of Mathematics 43 (2007), no. 1, 1-14.

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[68] Tunç, C. On the non-oscillation of solutions of some nonlinear differential equations of

third order, Nonlinear Dynamics and Systems Theory, Volume 7, Number 3, (2007), 1-12.

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[67] Tunç, C. A result on the instability of solutions to a class of non-autonomous differential

equations of seventh-order, Math. Sci. Res. J. 11 (2), (2007), 360-366.

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[66] Tunç, C. Some remarks on the stability and boundedness of solutions of certain

differential equations of fourth order, Computational & Applied Mathematics, Volume 26, N.1,

pp.1-17, 2007.

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[65] Tunç, C. A further asymptotic behaviour result on certain non-autonomous differential

equations of fifth order, International Journal of Applied Mathematical Sciences (IJAMS)

Vol.3, No.2 (2006), 89-102.

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[64] Tunç, C. Stability and boundedness results on certain nonlinear vector differential

equations of fourth order, Nonlinear Oscillations (New York), Vol. 9, No. 4, Springer US

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[63] Tunç, C.; Tunç, E. Instability results for certain third order nonlinear vector differential

equations, Electron. J. Diff. Eqns., Vol. 2006(2006), No. 109, pp. 1-10.

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[62] Tunç, C., Some new stability and boundedness results on the solutions of the nonlinear

vector differential equations of second order, Iranian Journal of Science and Technology ,

Transaction A. Science, Vol. 30, No. A2, (2006), 213-221.

http://www.shirazu.ac.ir/en/index.php?page_id=1033

[61] Tunç, C., Some instability results on certain third order nonlinear vector differential

equations, BULLETIN of the Institute of Mathematics Academia Sinica (N.S.), Volume 2,

Number 1, (2007), 109-122.

http://www.math.sinica.edu.tw/bulletin/

[60] Tunç, C., On the boundedness of solutions of certain nonlinear vector differential equations

of third order, Bulletin Mathématique de la Société des Sciences Mathématiques de Roumanie,

Tome 49 (97), (2006), no. 3, 290-299.

http://rms.unibuc.ro/bulletin/

[59] Tunc, C., Stability and boundedness of solutions to certain fourth-order differential

equations, Electron. J. Diff. Eqns., Vol. 2006(2006), No. 35, pp. 1-10.

http://ejde.math.txstate.edu/

[58] Tunç, C., About uniform boundedness and convergence of solutions certain non-linear

differential equations of fifth order. Bulletin of the Malaysian Mathematical Sciences Society ,

Vol 30, No 1, (2007), 1-12.

http://math.usm.my/bulletin/html/scope.htm

[57] Tunç, C. ; Tunç, E. (2006) New ultimate boundedness and periodicity results for certain

third-order nonlinear vector differential equations, Mathematical Journal of Okayama

University, 48 (2006), 159-172.

http://www.math.okayama-u.ac.jp/mjou/

[56] Tunç, C. About stability and boundedness of solutions of certain fourth order differential

equations, Nonlinear Phenomena in Complex Systems, 9(4), (2006), 380-387.

http://www.j-npcs.org/

[55] Tunç, C.; Ateş, M. On the Periodicity Results for Solutions of Some Certain Third Order

Nonlinear Differential Equations, Advances in Mathematical Sciences and Applications,

Volume 16, Number 1, (2006), 1-14.

http://www1.gifu-u.ac.jp/~aiki/AMSA/

[54] Tunç, C. New results about instability of nonlinear ordinary vector differential equations

of sixth and seventh orders, Dynamics of Continuous, Discrete and Impulsive Systems; DCDIS

Series A: Mathematical Analysis, Volume 14, Number1, (2007) 123-136.

http://monotone.uwaterloo.ca/~journal/

[53] Tunç, C. ; Tunç, E. (2006) An instability theorem for a class of eighth order differential

equations, Differential Equations (Differ. Uravn.) Tom 42, No.1, (2006) 150-154.

http://www.springerlink.com/openurl.asp?genre=journal&issn=0012-2661

[52] Tunç, C. (2006) Stability results for the solutions of certain non-autonomous differential

equations of fifth order, Proyecciones, Journal of Mathematics , 25 (1), (2006) 1-18.

http://www.scielo.cl/scielo.php?script=sci_serial&pid=0716-0917&lng=en&nrm=iso

[51] Tunç, C.; Şevli, H. (2007) Stability and boundedness properties of certain second order

differential equations, Journal of the Franklin Institute, Engineering and Applied Mathematics

344(5), (2007), 399-405 .

http://www.sciencedirect.com/science/journal/00160032

[50] Tunç, C. ; Tunç, E. (2005) Instability of solutions of certain nonlinear vector differential

equations of order seven, Iranian Journal of Science and Technology , Transaction A. Science

29 (A3): 515-521.

http://hafez.shirazu.ac.ir/~journals/ijst.htm

[49] Tunç, C.; Tunç, E. (2007) On the asymptotic behavior of solutions of certain second-order

differential equations, Journal of the Franklin Institute, Engineering and Applied Mathematics

344 (5), (2007), 391-398 .

http://www.sciencedirect.com/science/journal/00160032

[48] Tunç, C.; Ateş, M. (2006) Stability and boundedness results for solutions of certain third

order nonlinear vector differential equations, Nonlinear Dynamics. An International Journal of

Nonlinear Dynamics and Chaos in Engineering Systems, Volume 45, Numbers 3-4, Date:

August 2006, 273 - 281.

http://www.springerlink.com/openurl.asp?genre=journal&issn=0924-090X

[47] Tunç, C. (2006) On the stability of solutions of certain fourth-order delay differential

equations. Applied Mathematics and Mechanics (English Edition), Vol.27, No.8, (2006), 1141-

1148.

http://www.springerlink.com/openurl.asp?genre=journal&issn=0253-4827

[46] Tunç, C. (2005) Some stability and boundedness results for the solutions of certain fourth

order differential equations. Acta Universitatis Palackiana Olomucensis, Facultas Rerum

Naturalium, Mathematica 44, 161-171.

http://mant.upol.cz/cs/acta_math.asp

[45] Tunç, C. ; Tunç, E. (2004) A result on the instability of solutions of certain non-

autonomous vector differential equations of fourth order. East-West Journal of Mathematics

6(2), (2004), 153-160.

http://math.boisestate.edu/~ewjm/index.html

[44] Tunç, C. (2006) New results about stability and boundedness of solutions of certain non-

linear third-order delay differential equations, The Arabian Journal for Science and

Engineering, Volume 31, Number 2A, (2006), 185-196.

http://www.kfupm.edu.sa/publications/ajse/

[43] Tunç, C.; Şevli, H. On the instability of solutions of certain fifth order nonlinear

differential equations, Mem. Differential Equations Math. Phys. 35 (2005), 147-156.

http://www.emis.ams.org/journals/MDEMP/index.html

[42] Tunç, C. On the asymptotic behavior of solutions of certain third-order nonlinear

differential equations. Journal of Applied Mathematics and Stochastic Analysis 2005, No.1, 29-

35 (2005).

http://www.hindawi.com/journals/jamsa/index.html

[41] Tunç, C. (2005) Boundedness of solutions of a third-order nonlinear differential equation.

Journal of Inequalities in Pure and Applied Mathematics 6 (2005), no.1, 1-6.

http://jipam.vu.edu.au

[40] Tunç, C. Uniform ultimate boundedness solutions of third-order nonlinear differential

equations, Kuwait Journal of Science and Engineering Volume : 32 (1), (2005) 39-48.

http://www.kjse.kuniv.edu.kw/english/default.asp

[39] Tunç, C. Instability of solutions of a certain non-autonomous vector differential

equation of eighth-order, Annals of Differential Equations, Vol. 22, No.1, 2006, 7-12.

http://www.fzu.edu.cn/h03/aode/

[38] Tunç, C. An ultimate boundedness result for a certain system of fourth order nonlinear

differential equations. Differential Equations and Applications, Vol. 5 (2007), 163-174.

https://www.novapublishers.com/catalog/product_info.php?products_id=4071

[37] Tunç, C. Some stability results for the solutions of certain fourth order delay differential

equations. Differential Equations and Applications, Vol. 4 (2007), 133-140.

https://www.novapublishers.com/catalog/product_info.php?products_id=4071

[36] Tunç, C. An instability result for a certain non-autonomous vector differential equation of

fifth-order. Pan-American Mathematical Journal, 15(3), (2005), 51-58.

www.internationalpubls.com

[35] Tunç, C. A further instability result for a certain vector differential equation of fourth

order, Int. J. Math. Game Theory Algebra 15 (2006), no. 5, 489-495.

https://www.novapublishers.com/catalog/product_info.php?products_id=1712

[34] Tunç, C. (2004) A result on the asymptotic behaviour of solutions of certain non-

autonomous differential equations of the fifth order. Nonlinear Phenomena in Complex

Systems, 7(4), 359-367.

http://www.j-npcs.org/

[33] Tunç, C. (2004) On the instability of solutions of certain nonlinear vector differential

equations of fifth order. Pan-American Mathematical Journal, 14 (4), 25-30.

www.internationalpubls.com

[32] Tunç, C. (2004) Global stability of solutions of certain third-order nonlinear differential

equations. Pan-American Mathematical Journal, 14 (4) , 31-37.

www.internationalpubls.com

[31] Tunç, C. (2004) On the instability of certain sixth-order nonlinear differential equations.

Electron. J. Diff. Eqns., Vol. 2004 (2004), No. 117, pp. 1-6.

http://ejde.math.txstate.edu/

[30] Tunç, C. (2004) An instability theorem for a certain vector differential equation of the

fourth order. Journal of Inequalities in Pure and Applied Mathematics 5 (2004), no.1, 1-5.

http://jipam.vu.edu.au

[29] Tunç, C. (2004) An instability result for certain system of sixth order differential

equations. Applied Mathematics and Computation, 157 (2), 477-481.

http://www.elsevier.com/locate/issn/0096-3003

[28] Tunç, C. (2004) A note on the stability and boundedness results of solutions of certain

fourth order differential equations. Applied Mathematics and Computation, 155 (3), 837-843.

http://www.elsevier.com/locate/issn/0096-3003

[27] Tunç, C. (2004) A study of the asymptotic behaviour of solutions of certain non-

autonomous differential equations of the fifth order. Applied Mathematics and Computation

154 (1), 103-113.

http://www.elsevier.com/locate/issn/0096-3003

[26] Tunç, C.; Tunç, E. (2004) On the asymptotic behaviour of solutions of certain non-

autonomous differential equations. Applied Mathematics and Computation 151 (2), 363-378.

http://www.elsevier.com/locate/issn/0096-3003

[25] Tunç, C.( 2003) On the asymptotic behaviour of solutions of certain fifth-order ordinary

differential equations. Applied Mathematics and Mechanics (English Edition) 24(8), 893-901.

http://www.springerlink.com/openurl.asp?genre=journal&issn=0253-4827

[24] Tunç, C. (2002) A study of the stability and boundedness of the solutions of nonlinear

differential equations of the fifth order. Indian J. Pure Appl. Math. 33 , no.4, 519-529.

http://www.insa.ac.in/html/home.asp

[23] Tunç, C. (2001) Boundedness and uniform boundedness results for certain non-

autonomous differential equations of fourth order. Appl. Math. Mech. (English Ed.) 22 (11),

1273-1278.

http://www.springerlink.com/openurl.asp?genre=journal&issn=0253-4827

[22] Tunç, C. (2000) Boundedness and periodicity of fifth order non-linear differential

equations. Bull. Greek Math. Soc. 43, 55-69.

[21] Tunç, C. (1999) On the uniform boundedness of solutions of some non-autonomous

differential equations of the fourth order. Chinese translation in Appl. Math. Mech. 20, no. 6,

585-591. Appl. Math. Mech. (English Ed.) 20, no.6, 622-628.

http://www.springerlink.com/openurl.asp?genre=journal&issn=0253-4827

[20] Tunç, C. (1999) On the boundedness and periodicity of the solutions of a certain vector

differential equation of third-order. Appl. Math. Mech. 20 (2), 153-160.

http://www.springerlink.com/openurl.asp?genre=journal&issn=0253-4827

[19] Tunç, C. (1998) A global stability result for a certain system of fifth order nonlinear

differential equations. Acta Comment. Univ. Tartu. Math. No. 2 , 3-13.

[18] Tunç, C. (1998) A stability result for a certain system of fourth order nonlinear differential

equations. An. Univ. Bucurecsti Mat. 47, no. 1, 109-120.

[17] Tunç, C. (1998) On the ultimate boundedness result for the solutions of certain fourth

order differential equations. Ann. Differential Equations 14 (3), 475-485.

http://www.fzu.edu.cn/h03/aode/

[16] Tunç, C. (1997) Nonoscillation criteria for a class of nonlinear differential equations of

third order. Bull. Greek Math. Soc. 39, 131-137.

[15] Tunç, C. (1997) Boundedness and stability results for a certain system of fifth order

nonlinear differential equations. Istanbul Üniv. Fen Fak. Mat. Derg. 55/56 , 179-188 .

[14] Tunç, C. (1997) A ultimate boundedness result for the solutions of certain fifth order non-

linear differential equations. Punjab Univ. J. Math. (Lahore), 125-141.

[13] Tunç, C. (1997) On the non-oscillation of solutions of non-homogeneous third order

differential equations. Soochow J. Math. 23 (1), 1-7.

http://www.math.scu.edu.tw/sjm-web/home.htm

[12] Tunc, C. (1996) On the boundedness and the stability results for the solution of certain

fifth order differential equations. Ann. Differential Equations 12 (3), 259-266.

http://www.fzu.edu.cn/h03/aode/

[11] Tunç, C. (1996) On the asymptotic behaviour of solutions of certain fourth order non-

autonomous differential equations. Studia Univ. Babeş-Bolyai Math. 41(3), 95-105.

http://www.cs.ubbcluj.ro/~studia-m/editors.php

[10] Tiryaki, A.; Tunç, C. (1996) Boundedness and stability properties of solutions of certain

fourth order differential equations via the intrinsic method. Analysis 16 (4), 325-334.

http://www.oldenbourg.de/verlag/analysis-international/

[9] Tunç, C. (1996) A boundedness result for certain fourth order differential equations. Bull.

Calcutta Math. Soc. 88, no. 2, 113-120.

[8] Tunc, C.; Tiryaki, A. (1996) On the boundedness and the stability results for the solution

of certain fourth order differential equations via the intrinsic method. Appl. Math. Mech.

(English Ed.) 17 (11), 1039-1049.

http://www.springerlink.com/openurl.asp?genre=journal&issn=0253-4827

[7] Tiryaki, A.; Tunç, C. (1996) On the boundedness and the stability properties for the

solutions of certain fifth order differential equations. Hacet. Bull. Nat. Sci. Eng. Ser. B 25, 53-

68.

[6] Tunç, C. (1995) On the boundedness and the stability results for the solutions of certain fifth

order differential equations. Istanbul Üniv. Fen Fak. Mat. Derg. 54, 151-160.

[5] Tunç, C. (1995) On the stability and the boundedness properties of solutions of certain

fourth order differential equations. Istanbul Üniv. Fen Fak. Mat. Derg. 54 , 161-173.

[4] Tiryaki, A.; Tunç, C. (1995) Constructing Lyapunov functions for certain fourth-order

autonomous differential equations. Indian J. Pure Appl. Math. 26 (3), 225-232.

http://www.insa.ac.in/html/home.asp

[3] Tunc, C. (1995)On the stability result for the solution of certain fourth order differential

equations. Pure Appl. Math. Sci. 42 (1995), no. 1-2, 75-84.

[2] Tunç, C. On the boundedness and the stability properties of solution of certain fifth order

differential equations. An. Univ. Timisoara Ser. Mat.Inform. 33, no. 1, (1995) 147-159.

http://www.math.uvt.ro/anmath/index.html

[1] Tunç, C. (1994) On the asymptotic behaviour of solutions of some differential equations of

the fourth order. Studia Univ. Babeş-Bolyai Math. 39 (2), 87-96.

http://www.cs.ubbcluj.ro/~studia-m/editors.php

Editorial Board Member

1) Journal of the Egyptian Mathematical Society

(Production and Hosting by Elsevier B.V.)

on behalf of Egyptian Mathematical Society

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2) Journal of Taibah University for Science

Production and Hosting by Taylor & Francis Group

on behalf of Taibah University

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Emerging Sources Citation Index

7) Electronic Journal of Mathematical Analysis and Applications

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8) Journal of Interpolation & Approximation in Scientific

Computing (JIASC)

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9)Journal of Mathematics and Applications

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18) Editor of

Emerging Issues in the Natural and Applied Sciences

Academic Book

“PROGRESS”

Baku, Azerbaijan-2011, 2012, 2013 (Three Books).

1) Mathematical Reviewer of AMS, American Mathematical Society.

2) Mathematical Reviewer of Zentralblatt MATH.

3) Member of RGMIA, http://rgmia.vu.edu.au/members

Conference Proceedings:

[32] Tunc, C. , Pseudo almost periodic solutions forfunctional differential equations of first

order. 4th International Conference on Mathematics & Information Science (ICMIS 2015),

Zewail City of Science and Technology, Cairo-Egypt, 5-7 Feb. 2015.

[31] Tunc, C. , International Conference on Recent Advances in Applied Mathematics.

December 17-18, Lahore-Pakistan.

[30] Tunc, C., On the stability and boundedness of solutions to Volterra integro-differential

equations with delay. International Conference on Advancements in Mathematical Sciences

(AMS). 5-7 Kasım, 2015, Antalya-Turkey.

[29] Tunc, C., 6th INTERNATIONAL CONFERENCE ON MODELING, SIMULATION

AND APPLIED OPTIMIZATION. Dedicated to the memory of Late Ibrahim El-SadekMay

27 – 29, 2015 Yildiz Technical University, Istanbul, Turkey.

[28] Tunc, C. , Pseudo almost periodic solutions forfunctional differential equations of first

order. 4th International Conference on Mathematics & Information Science (ICMIS 2015),

Zewail City of Science and Technology, 5-7 Feb. 2015.

[27] Tunc, C. , On the Pseudo almost periodic solutions for HCNNs with time-varying leakage

delays International Conference on Advances in Applied Mathematics ICAAM-2014

Hammamet, 22-25 December, 2014, Tunisia

[26] Tunc, C. , A comparison on the stability of a functional differential equation of second

order by fixed point theory and Lyapunov theory. The Azerbaijan National Academy of

Sciences, 13-18 Mayıs 2014, Baku, Azerbaijan.

[26] Tunc, C. , Fixed points and stability in nonlinear differential equations with variable delay.

“3rd International Conference on Mathematics & Information Science”. December 28-30,

2013, Luxor-Egypt.

[25] Tunc,C., On the existence of periodic solutions of differential equations of higher order

Workshop on Control Theory and Applications, 15-19 December, 2012, Mahdia-Tunis.

[24] Tunc, C., Stability and boundedness in multi delay vector Liénard equation. Algerian-

Turkish International days on Mathematics 2012 ATIM’2012. University Badji Mokhtar

Annaba, 9 - 11 October 2012, Annaba, Algeria.

[23] Tunc, C., On the Qualitative Behaviors of Solutions of Some Differential Equations with

Deviating Argument, April 19, 2012, Centro de Matematica e Aplicacoes Fundamentais,

University of Lisbon, PORTUGAL.

Tunc, C., Recent Advances on Qualitative Behaviours of Solutions of Some Differential

Equations of Higher Order with Multiple Deviating Arguments, September 10-13, 2011,

Sohag University, Sohag, Egypt.

[22] Tunc, C., On the boundedness and integrability of non-autonomous differential equations

of second order with variable deviating arguments. 9th Colloquium on the Qualitative Theory

of Differential Equations, June 28 - July 1, 2011, Szeged, Hungary. University of Szeged,

Bolyai Institute.

www.math.u-szeged.hu/9QTDE

[21] Tunc,C.,On the asymptotic stability of solutions of a class of neutral differential

equations with deviating argument, Workshop on Nonlinear Analysis and Applications,

December 16-19, 2010, Monastir-Tunis.

[20] Tunç, C., Stability, boundedness and uniform boundedness of solutions solutions of

nonlinear delay differential equations, The 8th AIMS Conference on Dynamical Systems,

Differential Equations and Applications, Dresden University of Technology,

Dresden , Germany, May 25 - 28, 2010.

[19] Tunç, C., On the qualitative behaviors of solutions of Liénard type equations with

multiple deviating arguments. International Conference on Analysis And Applications,

January 24-26, 2010, Sultan Qaboos University, Muscat, Oman.

[18] Tunc,C. Stability, boundedness and uniform boundedness of solutions solutions of second

order nonlinear differential equations, Workshop on Control Theory and Applications,

November 19-22, 2009, Monastir-Tunis.

[17] Tunç, C., On the qualitative behavior of some delay differential equations of higher order,

International Conference of Modeling, Simulation, and Applied Optimization (ICMSAO-09);

January 20-22, 2009, American University of Sharjah , Sharjah, UAE.

[16] Tunç, C., Nonlinear analysis and Geometric PDE: CIMPA Summer School

(Mathematics), June 15-24, 2008, Tsaghkadzor, Armenia.

[15] Tunç, C. Stability and boundedness of solutions to nonlinear delay differential equations,

Conference on Equations Différentielles Ordinaires, 24-29 May 2008, Mostaganem, Algeria.

[14] Tunç, C. On the stability and boundedness of solutions of some nonlinear differential

equations of fourth and fifth-order with delay, Fifth International Conference on Dynamic

Systems and Applications, May 30 - June 2, 2007, Morehouse College, Atlanta, Georgia,

USA.

[13] Tunç, C. On the stability of solutions to certain third and fourth-order delay differential

equations, International Congress of Mathematicians, ICM, August 22-30, 2006, Madrid-

SPAIN.

[12] Tunç, C. On the stability and boundedness of solutions to certain third-order delay

differential equations, 37.Annnual Iranian Mathematics Conference, Azarbaijan University,

September 2-5, 2006, Tabriz-IRAN.

[11] Tunç, C.; Karakaş, B. (2005) About boundedness of solutions of nonlinear vector

differential equations of third order, 14th Summer St. Petersburg Meeting in Mathematical

Analysis, June 6-11, Euler International Mathematical Institute, St. Petersburg, RUSSIA.

[10] Tunç, C.; Tunç, E. (2005) On the asymptotic behavior of solutions of certain second-order

differential equations, International Conference of Modeling, Simulation, and Applied

Optimization (ICMSAO-05); February 1-3, American University of Sharjah , Sharjah, UAE.

[9] Tunç, C.; Şevli, H. (2005) Stability and boundedness properties of certain second order

differential equations, International Conference of Modeling, Simulation, and Applied

Optimization (ICMSAO-05), February 1-3, American University of Sharjah , Sharjah, UAE.

[8] Tunç, C.; Şevli, H. (2004) On the instability of solutions of certain fifth order nonlinear

differential equations, Bunyakovsky International Conference (Kyiv-Ukrainia).

[7] Tunç, C.; Tunç, E. (2004) Some instability theorems for certain third and fourth order

nonlinear differential equations, Bunyakovsky International Conference (Kyiv-Ukrainia).

[6] Tunç, C. (2003) A result on the asymptotic behaviour of solutions of certain non-autonomus

differential equations of the fifth order XVI. Ulusal Matematik Sempozyumu, Yüzüncü Yıl

Üniversitesi, Van.

[5] Tunç, C. (2001) Boundedness and stability results for the solution of certain fourth order

autonomus, XIV. Ulusal Matematik Sempozyumu, Anadolu Üniversitesi, Eskişehir.

[4] Tunç, C. (2000) Boundedness and uniform boundedness results for certain non-autonomous

differential equations of fourth order, XIII. Ulusal Matematik Sempozyumu, Sabancı

Üniversitesi, İstanbul.

[3] Tunç, C. (1999) A study of the stability and boundedness of the solutions of nonlinear

differential equations of the fifth order, XII. Ulusal Matematik Sempozyumu, İnönü

Üniversitesi, Malatya.

[2] Tunç, C. (1997) A stability result for a certain system of fourth order nonlinear differential

equations, X. Ulusal Matematik Sempozyumu, Abant İzzet Baysal Üniversitesi, Bolu.

[1] Tunç, C. (1996) Boundedness and stability results for a certain system of fifth order

nonlinear differential equations, IX. Ulusal Matematik Sempozyumu, İstanbul Teknik

Üniversitesi, İstanbul.