On the Sufficient Conditions of the Nonexistence of Periodic Solutions for a Planar Nonlinear System
Received:June 19, 1999  
Key Words: periodic solutions   positive and negative semitrajectory   critical point.  
Fund Project:
Author NameAffiliation
ZENG Zhi-gang Dept. of Math.
Hubei Normal University
Huangsbi
China 
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Abstract:
      In the paper,some sufficient conditions are established for the nonexistence of peri- odic solutions of a nonlinear system.
Citation:
DOI:10.3770/j.issn:1000-341X.2001.03.015
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