The purpose of this paper is to study the existence and multiplicity of periodic solution for the following non-autonomous second-order systems: {u(0) - u(T) = <(u)over dot>(0) - <(u)over dot>(T) = 0.<(u)double over dot>(t) = delF(t, u(t)) a.e. t is an element of [0, T], Some new existence and multiplicity theorems are obtained by using the least action principle and the minimax method. (C) 2004 Elsevier Ltd. All rights reserved.
机构:
SW Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R ChinaSW Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China
Zhang, Lie-Hui
Wang, Yong
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机构:
SW Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China
SW Petr Univ, Sch Sci, Chengdu 610500, Sichuan, Peoples R ChinaSW Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China
Wang, Yong
[J].
JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS,
2010,
347
(05):
: 781
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794