Global properties of linear ordinary differential equations
著者
書誌事項
Global properties of linear ordinary differential equations
（Mathematics and its applications, . East European series ; v. 52）
Kluwer Academic Publishers , Academia, c1991
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注記
Includes bibliographical references (p. [299]-314) and indexes
内容説明・目次
内容説明
This monograph contains a description of original methods and results concern ing global properties of linear differential equations of the nth order, n ~ 2, in the real domain. This area of research concerning second order linear differential equations was started 35 years ago by O. Boruvka. He summarized his results in the monograph "Lineare Differentialtransforrnationen 2. Ordnung", VEB, Berlin 1967 (extended version: "Linear Differential Transformations of the Second Order", The English U niv. Press, London 1971). This book deals with linear differential equations of the nth order, n ~ 2, and summarizes results in this field in a unified fashion. However, this mono graph is by no means intended to be a survey of all results in this area. I t contains only a selection of results, which serves to illustrate the unified approach presented here. By using recent methods and results of algebra, topology, differential geometry, functional analysis, theory of functional equations and linear differential equations of the second order, and by introducing several original methods, global solutions of problems which were previously studied only locally by Kummer, Brioschi, Laguerre, Forsyth, Halphen, Lie, Stiickel and others are provided. The structure of global transformations is described by algebraic means (theory of categories: Brandt and Ehresmann groupoids), a new geometrical approach is introduced that leads to global canonical forms (in contrast to the local Laguerre-Forsyth or Halphen forms) and is suitable for the application of Cartan's moving-frame-of-reference method.
目次
Series Editors Preface. Preface. Symbols defined in the text. 1. Introduction with historical remarks. 2. Notation, definitions and some basic facts. 3. Global transformations. 4. Analytic, algebraic and geometrical aspects of global transformations. 5. Criterion of global equivalence. 6. Stationary groups. 7. Canonical forms. 8. Invariants. 9. Equations with solutions of prescribed properties. 10. Zeros of solutions. 11. Related results and some applications. 12. Appendix: Two functional equations. Literature cited in the book and/or for supplementary reading. Subject index. Index of names.
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