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A general coincidence theorem
on contractible spaces

Authors: Sehie Park and Kwang Sik Jeong
Journal: Proc. Amer. Math. Soc. 124 (1996), 3203-3206
MSC (1991): Primary 47H10, 49A40, 54C60; Secondary 54H25, 55M20
MathSciNet review: 1343718
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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.

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Additional Information

Sehie Park
Affiliation: Department of Mathematics, Seoul National University, Seoul 151–742, Korea

Kwang Sik Jeong
Affiliation: Department of Mathematics, Soong Sil University, Seoul 156-743, Korea

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
Received by editor(s): April 11, 1995
Additional Notes: Supported in part by Ministry of Education, 1995, Project Number BSRI-95-1413.
Communicated by: Palle E. T. Jorgensen
Article copyright: © Copyright 1996 American Mathematical Society

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