Existence of nontrivial homoclinic orbits for fourth-order difference equations
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摘要
We obtain a sufficient condition for the existence of nontrivial homoclinic orbits for fourth-order difference equations by using Mountain Pass Theorem, a weak convergence argument and a discrete version of Lieb’s lemma.
论文关键词：Fourth-order difference equations,Homoclinic orbits,Mountain Pass Theorem,Discrete version of Lieb’s lemma
论文评审过程：Available online 1 April 2009.
论文官网地址：https://doi.org/10.1016/j.amc.2009.03.061
