Periodic solutions of radially symmetric systems with a singularity

被引：0
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作者：
Shengjun Li
Fang-fang Liao
Jianqiang Sun
机构：
[1] Hainan University,Department of Mathematics
[2] Hohai University,College of Science
[3] Nanjing College of Information Technology,undefined
来源：
Boundary Value Problems | / 2013卷
关键词：
periodic solution; singular systems; topological degree;
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摘要：
In this paper, we study the existence of infinitely many periodic solutions to planar radially symmetric systems with certain strong repulsive singularities near the origin and with some semilinear growth near infinity. The proof of the main result relies on topological degree theory. Recent results in the literature are generalized and complemented.
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