Positive periodic solutions of functional differential equations with impulses and a parameter

  • Authors:
  • Yongkun Li;Xuanlong Fan;Lili Zhao

  • Affiliations:
  • Department of Mathematics, Yunnan University, Kunming, Yunnan 650091, People's Republic of China;Department of Mathematics, Yunnan University, Kunming, Yunnan 650091, People's Republic of China;Department of Mathematics, Yunnan University, Kunming, Yunnan 650091, People's Republic of China

  • Venue:
  • Computers & Mathematics with Applications
  • Year:
  • 2008

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Abstract

By applying the well-known Leggett-Williams multiple fixed point theorem, this paper investigates the existence of multiple positive periodic solutions of functional differential equations with impulses and a parameter.