Periodic Solutions of Liénard Equations withInfinite Delay
Received:May 22, 2000  
Key Words: Liénard equations   infinite delay   periodic solutions.  
Fund Project:Supported by the NNSF of China (10071097)
Author NameAffiliation
PENG Shi-guo Dept. of Appl. Math.
Guangdong University of Technology
Guangzhou
China 
ZHU Si-ming Dept. of Math.
Zhongshan University
China 
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Abstract:
      The problem of periodic solutions for Liénard equations with infinite delay x+(?2F(x))/(?x2)x+g(t,xt)=p(t)is discussed by using Mawhin's,coincidence degree theory. Some new results on the existence of periodic solutions are derived.
Citation:
DOI:10.3770/j.issn:1000-341X.2003.01.015
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