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EXISTENCE OF PERIODIC SOLUTIONS FOR A CLASS OF SECOND-ORDER SUPERQUADRATIC DELAY DIFFERENTIAL EQUATIONS

机译:一类二阶超二次时滞微分方程周期解的存在性

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摘要

Using critical point theory (in particular a Linking theorem) we study the existence of periodic solutions for the second-order delay differential equations where f(t, x) depends periodically on t and F(t, x) is superquadratic (here ▽_XF = f). In particular we consider the case when f does riot satisfy the Ambrosetti-Rabinowitz growth condition.
机译:使用临界点理论(尤其是链接定理),我们研究了二阶时滞微分方程的周期解的存在性,其中f(t,x)周期性地取决于t,F(t,x)是超二次的(此处▽_XF = f)。特别地,我们考虑了当暴动满足Ambrosetti-Rabinowitz生长条件时的情况。

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