EXISTENCE OF LIMIT CYCLES IN A MULTIPLY-CONNECTED REGION



EXISTENCE OF LIMIT CYCLES IN A MULTIPLY-CONNECTED REGION

Citation：	ZHANG Xiang.EXISTENCE OF LIMIT CYCLES IN A MULTIPLY-CONNECTED REGION[J].Chinese Annals of Mathematics B,1999,20(2):169~172
Page view： 953 Net amount： 719
Authors：	ZHANG Xiang;
Foundation：	the National Natural Science Foundation of China and the Jiangsu Provincial Natural Science Foundation of China

Abstract：	In this paper, a conjecture about the existence of limit cycles in a multiply-connected region proposed by Ye Yanqian is proved.
Keywords：	Multiply-connected region, Annulus theorem, Limit cycle
Classification：	34C05

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