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A general coincidence theorem on contractible spaces |
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| Authors: | Sehie Park Kwang Sik Jeong |
| Affiliation: | Department of Mathematics, Seoul National University, Seoul 151--742, Korea ; Department of Mathematics, Soong Sil University, Seoul 156-743, Korea |
| Abstract: | We obtain a general coincidence theorem for multifunctions in very large classes defined on contractible spaces. Our theorem generalizes a recent result due to Tarafdar and Yuan (1994) and many other earlier works including the Fan-Browder fixed point theorem. |
| Keywords: | Multifunction (map) $H$-space $c$-space u.s.c. map Kakutani map acyclic map approximable map admissible map contractible $infty $-proximally connected compactly open |
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