FIXED POINTS FOR WEAKLY INWARD MAPPINGS IN BANACH SPACES (Ⅱ) |
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基金项目: | Supported in part by the Foundations of Education Ministry, Anhui Province, China (No: KJ2008A028); Education Ministry, Hubei Province, China (No: D20102502) |
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摘 要: | S. Hu and Y. Sun1] defined the fixed point index for weakly inward mappings, investigated its properties and studied fixed points for such mappings. In this paper, following S. Hu and Y. Sun, we further investigate boundary conditions, under which the fixed point index for i(A,Ω, p) is equal to nonzero, where i(A,Ω, p) is the completely continuous and weakly inward mapping. Correspondingly, we can obtain many new fixed point the-orems of the completely continuous and weakly inward mapping, which generalize...
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Fixed points for weakly inward mappings in Banach spaces (II) |
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Authors: | Shaoyuan Xu Wangbin Xu Guanghui Zhou |
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Institution: | Shaoyuan Xu (Hubei Normal University,China/Gannan Normal University,China)) Wangbin Xu (Hubei Normal University,China) and Guanghui Zhou (Huaibei Normal University,China) |
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Abstract: | S. Hu and Y. Sun1] defined the fixed point index for weakly inward mappings, investigated its properties and studied fixed
points for such mappings. In this paper, following S. Hu and Y. Sun, we further investigate boundary conditions, under which
the fixed point index for i(A, Ω, p) is equal to nonzero, where i(A, Ω, p) is the completely continuous and weakly inward mapping. Correspondingly, we can obtain many new fixed point theorems of
the completely continuous and weakly inward mapping, which generalize some famous theorems such as Rothe’s theorem, Altman’s
theorem, Petryshyn’s theorem etc. in the case of weakly inward mappings. In addition, our conclusions extend the famous fixed
point theorem of cone expansion and compression to the case of weakly inward mappings. Moreover, the main results contain
and generalize the corresponding results in the recent work2]. |
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Keywords: | fixed point and fixed point index weakly inward mapping completely contin- uous operator real Banach space cone |
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