Local Theory of Nonlinear Analytic Ordinary Differential Equations

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702

Yuri N. Bibikov

Local Theory of Nonlinear Analytic Ordinary Differential Equations

Springer-Verlag Berlin Heidelberg New York 1979

Author Yuri N. Bibikov Department of Mathematics Mechanics University Leningrad Leningrad USSR

AMS Subject Classifications (1970): 34A25, 34A45, 34C05, 34C20, 34C25, 34C30, 34 D10, 3 4 D 2 0 ISBN 3-540-09114-9 Springer-Verlag Berlin Heidelberg NewYork ISBN 0-387-09114-9 Springer-Verlag NewYork Heidelberg Berlin This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically those of translation, reprinting, re-use of illustrations, broadcasting, reproduction by photocopying machine or similar means, and storage in data banks. Under § 54 of the German Copyright Law where copies are made for other than private use, a fee is payable to the publisher, the amount of the fee to be determined by agreement with the publisher. © by Springer-Verlag Berlin Heidelberg 1979 Printed in Germany

PREFACE These notes p r e s e n t a u t h o r at the D i v i s i o n during

the second

a course of l e c t u r e s

of A p p l i e d M a t h e m a t i c s ,

semester

They are b a s e d on a course, the m o t i o n , matics

g i v e n by the

of the a c a d e m i c

year

Brown University 1975-1976.

on the t h e o r y of the s t a b i l i t y of

w h i c h the a u t h o r gave at the D e p a r t m e n t

and M e c h a n i c s

last several years,

at the U n i v e r s i t y

of M a t h e -

of L e n i n g r a d

during

and on some r e c e n t p u b l i c a t i o n s

by the

the

author. The a u t h o r members

is very g r a t e f u l

of the D i v i s i o n

discussions.

is also g r a t e f u l

proofreading

June,

for their help

and Miss S a n d r a S p i n a c c i

The author

1976

J a c k K. Hale,

for t h e i r w a r m h o s p i t a l i t y

The a u t h o r thanks Messrs.

K. Lyons and N. A l i k a k o s script,

to P r o f e s s o r

and

and u s e f u l

R. M a l e k - M a d a n i , in p r e p a r i n g

for her m e t i c u l o u s

to R. M a l e k - M a d a n i

the m a n u typing.

for his c a r e f u l

of the material.

Yuri N. B i b i k o v P r o v i d e n c e , R. I.

TABLE

OF CONTENTS Page

Basic

Notation

§0.

,,.., . . . . . . . . . . ,..., . . . . . . . . . . . . . . . . . ,..

Introduction

Chapter

I.

Analytic

§i.

Auxiliary

§2.

Normal

Form Form

§3.

Normal

LiapunovVs

§5.

Analytic

§6.

Special

§7.

Bifurcation

Chapter §8.

II.

1

Families

3

............

3 6

on

an Invariant

Family

Method

Surface

............

........................

of P e r i o d i c

Solutions

..........

..................................

Equation

Stability

Liapunov's

Solutions

................................

First

by

of

....................................

Cases

Stability

§9.

...................................

Lemma

§4°

48

Approximation

Method

.......................

Reduction

§12.

Critical

§13.

Critical Case of One Pair of Pure Imaginary Eigenvalues ..........................

§14.