凹泛函型锥拉伸与压缩不动点定理 |
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引用本文: | 孙冬冬,张国伟,张铁.凹泛函型锥拉伸与压缩不动点定理[J].数学学报,2010,53(5):847-852. |
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作者姓名: | 孙冬冬 张国伟 张铁 |
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作者单位: | 东北大学数学系 沈阳 110004 |
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基金项目: | 国家自然科学基金资助项目(10771031,10971179) |
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摘 要: | 本文通过凹泛函构造了Banach空间中的一个收缩核,并利用收缩核给出了凹泛函型锥拉伸与压缩不动点定理,扩展和完善了已有文献中的一些结果.
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关 键 词: | 收缩核 不动点 锥拉伸与压缩 |
收稿时间: | 2009-08-06 |
修稿时间: | 2010-01-20 |
Fixed Point Theorem About Cone Expansion and Compression of Concave Functional Type |
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Institution: | Department of Mathematics, Northeastern University, Shenyang 110004, P. R. China |
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Abstract: | This paper presents a retract in Banach spaces by means of concave functional and gives a fixed point theorem about cone expansion and compression of concave functional type which extends and complements the previous results.
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Keywords: | retract fixed point cone expansion and compression |
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