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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：男
毕业院校：山东大学
学位：博士
所在单位：数学科学学院
电子邮箱：hanzhiq@dlut.edu.cn
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Periodic solutions to second order nonautonomous differential systems with unbounded nonlinearities
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论文类型：期刊论文
发表时间：2011-09-01
发表刊物：MATHEMATISCHE NACHRICHTEN
收录刊物：Scopus、SCIE
卷号：284
期号：13
页面范围：1669-1677
ISSN号：0025-584X
关键字：Second order system; Ahmad-Lazer-Paul type condition; saddle point theorem
摘要：We investigate the existence of periodic solutions of differential systems with a skew-symmetric matrix term and unbounded nonlinearities. Under new generalized Ahmad-Lazer-Paul conditions, some existence results are obtained and some results in the literature are improved. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim