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Problems at resonance for equations with periodic nonlinearities

โœ Scribed by D. Bonheure; C. Fabry; D. Ruiz


Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
279 KB
Volume
55
Category
Article
ISSN
0362-546X

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Periodic solutions of equations with osc
โœ A.M. Krasnosel'skii; J. Mawhin ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 754 KB

## In this paper, we consider the Sn-periodic problem for the equation where n is a positive integer, b(t) is continuous and Pn-periodic, and f(x) is bounded and continuous. We give a new formulation for the Lazer-Leach conditions for the existence of 2a-periodic solutions, and new sufficient con