Yuehua Yu, Changhong Zhao
Abstract:
We consider the Lienard equation
where
,
,
and
are continuous
functions, the delays
are bounded continuous,
and
is a bounded continuous function.
We obtain sufficient conditions for all solutions and
their derivatives to be bounded.
Submitted December 15, 2008. Published January 13, 2009.
Math Subject Classifications: 34C25, 34K13, 34K25.
Key Words: Lienard equation; deviating argument; bounded solution.
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Yuehua Yu Department of Mathematics Hunan University of Arts and Science Changde, Hunan 415000, China email: jinli127@yahoo.com.cn |
Changhong Zhao Department of Mathematics Hunan University of Arts and Science Changde, Hunan 415000, China email: hongchangzhao@yahoo.com.cn |
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