Differential Equations : Geometric Theory, Second Edition

New York: Dover Publications, Inc., 1977. 5.5" wide by 8.25" tall. A bright, shiny, clean, square, tight copy. No store stamp, owner's name or bookplate. Pages are fresh and unmarked, apparently never read. No underlining. No highlighting. No margin notes. Flat spine. Quality softcover binding, with pages that are sewn (not glued) for many years of use. Contains a Preface and 12 sections: 1) Preliminary questions; 2) Existence theorems, general properties of the solutions; 3) Linear systems; 4) Stability; 5-7) The differential equation; 8) Periodic systems and their stability; 9) Two dimensional systems, simple critical points, the index, behavior at infinity; 10) Two dimensional systems, continued; 11) Differential equations of the second order; 12) Oscillations in systems of the second order, methods of approximation. Two appendices; I) Complement on matrices; II) Some Topological Complements. Problems. Bibliography. List of symbols. Index. . Reprint of the 1963 Second Edition. Trade Paperback. Fine condition. x, 390pp.