Article ID Journal Published Year Pages File Type
842100 Nonlinear Analysis: Theory, Methods & Applications 2010 9 Pages PDF
Abstract

We consider a second order periodic system with an indefinite linear part and a potential function which is superquadratic but does not satisfy the AR-condition. Using Morse critical groups, we show that the system has at least one nontrivial solution.

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Physical Sciences and Engineering Engineering Engineering (General)
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On superquadratic periodic systems with indefinite linear part
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