We prove the existence of nontrivial critical points for a class of superquadratic nonautononnous secondorder Hamiltonian systems by applying condition (C)* to critical point theory, and some new solvability conditions of nontrivial periodic solutions are obtained. (c) 2006 Elsevier Inc. All rights reserved.
机构:
Southwest Univ, Dept Math, Chongqing 400715, Peoples R China
Xinyang Normal Univ, Coll Math & Informat Sci, Xinyang City 464000, Henan, Peoples R ChinaSouthwest Univ, Dept Math, Chongqing 400715, Peoples R China
Xue, Yan-Fang
Tang, Chun-Lei
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Southwest Univ, Dept Math, Chongqing 400715, Peoples R ChinaSouthwest Univ, Dept Math, Chongqing 400715, Peoples R China