Abstract and Applied Analysis 
Volume 7 (2002), Issue 5, Pages 279-286
doi:10.1155/S1085337502000878

Positive periodic solutions of nonautonomous functional differential equations depending on a parameter

Guang Zhang1 and Sui Sun Cheng2

 1Department of Mathematics, Yanbei Normal College and Datong College, Datong, Shanxi 037000, China
2Department of Mathematics, Tsing Hua University, Hsinchu, Taiwan 30043, Taiwan
Received 5 November 2001

Abstract

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