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《JOURNAL OF SHANTOU UNIVERSITY(NATURAL SCIENCE EDITION)》 1995-01
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Qualitative research of a symmetric Klomogorov system

Li Wusheng(Department of Mathematics,Shantou University,Shantou 515063)  
In this paper we study a symmetric cubic differential system(K3). For every saddle or node, the typal formula that expresses its saddle - node property is established. All in all,six topological structures in(K3)have been obtained.
【CateGory Index】: O175.12
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