Note on a Quadratic System
Received:April 13, 1992  Revised:April 01, 1994
Key Words: quadratic system   quartic curve   separatrix cycle.  
Fund Project:
Author NameAffiliation
Si Chengbin Liaoning Normal University 
Shen Boqian Liaoning Normal University 
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Abstract:
      We obtain a necessary and sufficient condition for the existence of a type of quarticcurve separatrix cycles in the quadratic system.
Citation:
DOI:10.3770/j.issn:1000-341X.1995.02.020
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