REVIEW OF RECENT STUDIES ON THE KKM THEORY

Sehie Park

Abstract


Since we introduced the KKM theory in 1992, there have appeared more than
twelve hundred publications related to the theory. Many of them are concerned with KKM
type theorems on particular spaces, their equivalent formulations, and their applications to
various problems. Recently the KKM theory tends to the study on abstract convex spaces
properly including such particular spaces. In this paper, we give a short history of the theory
and review the current study through our previous comments or surveys.

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ISSN: 1229-1595 (Print), 2466-0973 (Online)

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