ON THE NUMBER OF LIMIT-CYCLES IN PERTURBATIONS OF QUADRATIC HAMILTONIAN-SYSTEMS

被引:0
|
作者
HOROZOV, E [1 ]
ILIEV, ID [1 ]
机构
[1] BULGARIAN ACAD SCI,INST MATH,BU-1090 SOFIA,BULGARIA
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D O I
暂无
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We prove that in quadratic perturbations of generic quadratic Hamiltonian vector fields with three saddle points and one centre there can appear at most two limit cycles. This bound is exact.
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页码:198 / 224
页数:27
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