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Lipschutz-Lipson:Schaum’s Outline of Theory and Problems of Linear Algebra, 3/e Front Matter Preface © The McGraw-Hill Companies, 2004 PREFACE Linear algebra has in recent years become an essential part of the mathemtical background required by mathematicians and mathematics teachers, engineers, computer scientists, physicists, economists, and statisti- cians, among others. This requirement re¯ects the importance and wide applications of the subject matter. This book is designed for use as a textbook for a formal course in linear algebra or as a supplement to all current standard texts. It aims to present an introduction to linear algebra which will be found helpful to all readers regardless of their ®elds of speci®cation. More material has been included than can be covered in most ®rst courses. This has been done to make the book more ¯exible, to provide a useful book of reference, and to stimulate further interest in the subject. Each chapter begins with clear statements of pertinent de®nitions, principles and theorems together with illustrative and other descriptive material. This is followed by graded sets of solved and supplementary problems. The solved problems serve to illustrate and amplify the theory, and to provide the repetition of basic principles so vital to effective learning. Numerous proofs, especially those of all essential theorems, are included among the solved problems. The supplementary problems serve as a complete review of the material of each chapter. The ®rst three chapters treat vectors in Euclidean space, matrix algebra, and systems of linear equations. These chapters provide the motivation and basic computational tools for the abstract investigation of vector spaces and linear mappings which follow. After chapters on inner product spaces and orthogonality and on determinants, there is a detailed discussion of eigenvalues and eigenvectors giving conditions for representing a linear operator by a diagonal matrix. This naturally leads to the study of various canonical forms, speci®cally, the triangular, Jordan, and rational canonical forms. Later chapters cover linear functions and the dual space V*, and bilinear, quadratic and Hermitian forms. The last chapter treats linear operators on inner product spaces. For completeness, there is an appendix on polynomials over a ®eld. The main changes in the third edition have been for pedagogical reasons rather than in content. Speci®cally, the abstract notion of a linear map and its matrix representation appears before and motivates the study of eigenvalues and eigenvectors and the diagonalization of matrices (under similarity). There are also many additional solved and supplementary problems. Finally, we wish to thank the staff of the McGraw-Hill Schaum's Outline Series, especially Barbara Gilson, for their unfailing cooperation. SEYMOUR LIPSCHUT MARC LARS LIPSON
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