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Existence of periodic solutions for first order differential equations

โœ Scribed by Juan J. Nieto


Book ID
107884421
Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
512 KB
Volume
15
Category
Article
ISSN
0096-3003

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Existence of periodic solutions for a cl
โœ Ke Wu; Xian Wu ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 326 KB

By the weak linking theorem and the local linking theorem, we study the existence of periodic solutions for the following delay non-autonomous systems The variational principle is given, some existence theorems of 4r-periodic solutions of (1) are obtained.