A GEOMETRICAL INDEX FOR THE GROUP S1 AND SOME APPLICATIONS TO THE STUDY OF PERIODIC-SOLUTIONS OF ORDINARY DIFFERENTIAL-EQUATIONS

被引：75

作者：

BENCI, V

机构：

来源：

关键词：

D O I：

10.1002/cpa.3160340402

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

引用

页码：393 / 432

页数：40

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