| 楔形上集值映象的非零不动点定理 |
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| 引用本文： | 兰坤泉. 楔形上集值映象的非零不动点定理[J]. 四川师范大学学报(自然科学版), 1989, 0(3) |
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| 作者姓名： | 兰坤泉 |
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| 作者单位： | 四川师范大学数学系 |
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| 摘 要： | 郭大钧在1984年获得了锥上全连映象的正不动点定理.张庆雍(1987)和丁协平(1986)改进和推广了郭的定理.本文利用凝聚映象的不动点指数和A-proper 映象的相对拓扑度理论,获得了楔形上集值映象的一些新的不动点定理,这些结论改进和推广了郭、张和丁的结果.
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| 关 键 词： | 楔形 集值映象 p_1-紧映象和不动点定理 |
Non-zero fixed point theorems for mult-valued mappings in wedge |
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| Lan Kunquan. Non-zero fixed point theorems for mult-valued mappings in wedge[J]. Journal of Sichuan Normal University(Natural Science), 1989, 0(3) |
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| Authors: | Lan Kunquan |
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| Affiliation: | Department of Mathematics |
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| Abstract: | In this paper using theory of fixed point index for condensing maps and relati-ve topoloyical degree for A-proper maps,some new non-zero fixed point theorems formult-valued mappings in wedge are obtained. |
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| Keywords: | wedge mult-valued mapping P_1-compact mapping and fixed point theorem |
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