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On periodic solutions of nonlinear second order differential systems

โœ Scribed by Ravi P. Agarwal


Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
480 KB
Volume
5
Category
Article
ISSN
0377-0427

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Positive periodic solutions of second-or
โœ Jun Wu; Zhicheng Wang ๐Ÿ“‚ Article ๐Ÿ“… 2008 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 282 KB

By employing the Deimling fixed point index theory, we consider a class of second-order nonlinear differential systems with two parameters (ฮป, ยต) โˆˆ R 2 + \ {(0, 0)}. We show that there exist three nonempty subsets of R 2 + \ {(0, 0)}: ฮ“ , โˆ† 1 and โˆ† 2 such that R 2 + \ {(0, 0)} = ฮ“ โˆช โˆ† 1 โˆช โˆ† 2 and th