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《Mathematica Applicata》 2001-02
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2π-Periodic Solution of the Equation ü+bu r+g(u(t-τ))=p(t)

FAN Yong hong 1, QUAN Hong shun(1. Dept. of Math. Northwest Normal University, Lanzhou 730070,China; 2. Dept. of Math. Lanzhou University, Lanzhou 730000,China)  
The time delay Dufing’s equation without damping term are considered, by using the theory of concidence degree, a sufficient condition of existence of at least one 2π periodic solution is obtained.
【CateGory Index】: O175.1
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【References】
Chinese Journal Full-text Database 3 Hits
1 SHANG Mei,LU Shi-ping(College of Mathematics and Computer Science,Anhui Normal University, Wuhu 241003,China);Periodic Solutions for a Kind of Duffing Equation with a Delay[J];Journal of Anhui Normal University(Natural Science);2007-04
2 LIU Jia-yu,QIN Rong-cun,FENG Chun-hua(College of Mathematical Sciences,Guangxi Normal University,Guilin 541004,China);Existence of Periodic Solutions for a Class of High Order Functional Differential Equations with Partial Difference Variables[J];Journal of Guangxi Teachers Education University(Natural Science Edition);2009-02
3 YANG Wen-shu (Deptartment of Mathematics,Jiaying College,Meizhou,Guangdong 514015,China);2π periodic solution for a class of functional differential equations[J];Journal of Guizhou Normal University(Natural Science);2004-01
【Co-references】
Chinese Journal Full-text Database 9 Hits
1 XIAO Bing, ZHOU Qi-yuan, YU Yue-hua(Department of Mathematics, Hunan University of Arts and Science, Changde, Hunan415000,China);Periodic Solutions for a Liénard-type Equation with Deviating Arguments[J];College Mathematies;2005-04
2 Lin Zhuangpeng 1,Xu Yuantong 2,Guo Zhiming 2 ( 1 Dept.of Math.,Shenzhen Univ.,Shenzhen\ 518060,China; 2 Dept.of Math.,Zhongshan Univ.,Guangzhou\ 510275,China) \;;PERIODIC SOLUTION FOR A CLASS OF FUNCTIONAL DIFFERENTIAL EQUATIONS WITH PARTIAL DIFFERENCE VARIABLES[J];APPLIED MATHEMATICS A JOURNAL OF CHINESE UNIVERSITIES;2000-04
3 LIU Ying(Institute of Educational Science,Harbin University,Harbin 150080,China);Existence of the Periodic Solutions for Liénard Equations with Distributed Delays[J];Journal of Harbin University of Science and Technology;2009-02
4 YANG Wen-shu (Deptartment of Mathematics,Jiaying College,Meizhou,Guangdong 514015,China);2π periodic solution for a class of functional differential equations[J];Journal of Guizhou Normal University(Natural Science);2004-01
5 LIN Wen-xian(Department of Mathematics and Information Technology,Hanshan Normal University,Chaozhou Guangdong 521041,China);An Existence Theorem of Periodic Solution for a Kind of High Order Functional Differential Equation[J];Mathematics in Practice and Theory;2008-06
6 Shi Ping LU(Department of Applied Mathematics, Beijing Institute of Technology, Beijing 100081, P. R. China) (Department of Mathematics, Anhui Nomal University, Wuhu 241000, P. R. China)(E-mail: lsp.ud@263.net)Wei Gao GE (Department of Applied Mathematics;Perodic Solutions of the Second Order Differential Equation with Deviating Arguments[J];Acta Mathematica Sinica;2002-04
7 MENG Hua LIU Bing-wen (Dept.Math.,Hunan University of Arts and Science,Changde 415000,China);Periodic Solutions for a Liénard-Type Equation with Deviating Arguments[J];Journal of Mathematical Research and Exposition;2006-03
8 School of Mathematics and Physics, North China Electric Power University, Beijing 102206, China;Periodic Solutions of Forced Lienard Equations ZHANG Xue-mei[J];Acta Analysis Functionalis Applicata;2005-01
9 WANG Yi-gao,LU Shi-ping(College of Mathematics and Computer Science,Anhui Normal University,Wuhu 241000,China);Existence of Periodic Solutions for a Kind of High Order Liénard Equations[J];Journal of Zhengzhou University(Natural Science Edition);2008-01
【Secondary References】
Chinese Journal Full-text Database 2 Hits
1 GAO Xiao-hong,LU Shi-ping (College of Mathematics and Computer Science,Anhui Normal University,Wuhu 24100,China);Existence of Periodic Solutions for a Fourth Order P-Laplacian Differential Equation With a Deviating Argument[J];Journal of Anhui Normal University(Natural Science);2009-03
2 LIU Jia-yu,QIN Rong-cun,FENG Chun-hua(College of Mathematical Sciences,Guangxi Normal University,Guilin 541004,China);Existence of Periodic Solutions for a Class of High Order Functional Differential Equations with Partial Difference Variables[J];Journal of Guangxi Teachers Education University(Natural Science Edition);2009-02
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