杨莉, 李永昆. 一类泛函差分方程的正周期解存在性[J]. 云南大学学报(自然科学版), 2009, 31(1): 16-20 .
引用本文: 杨莉, 李永昆. 一类泛函差分方程的正周期解存在性[J]. 云南大学学报(自然科学版), 2009, 31(1): 16-20 .
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YANG Li, LI Yong-kun. Existence of positive periodic solutions for a functional difference equation[J]. Journal of Yunnan University: Natural Sciences Edition, 2009, 31(1): 16-20 .
Citation: YANG Li, LI Yong-kun. Existence of positive periodic solutions for a functional difference equation[J]. Journal of Yunnan University: Natural Sciences Edition, 2009, 31(1): 16-20 .
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一类泛函差分方程的正周期解存在性

Existence of positive periodic solutions for a functional difference equation

    摘要
  • 摘要: 利用Krasonoselskii不动点定理,得到了一类非线性泛函差分方程至少有1个或至少有2个正周期解的充分条件.

     

    Abstract: By using Krasonoselskii's fixed point theorem,some sufficient conditions are obtained for the existence of at least one or at least two positive T-periodic solutions for a functional difference equation.

     

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