Coddington E.A., Levinson N. Theory of Ordinary Differential Equations

Krieger Pub Co, edition 1984. - 429 pages.The prerequisite for the study of this book is a knowledge of matrices and the essentials of functions of a complex variable. It has been developed from courses given by the authors and probably contains more material than will ordinarily be covered in a one-year course. It is hoped that the book will be a useful text in the application of differential equations as well as for the pure mathematician.