KKM MAPS AND LERAY--SCHAUDER TYPE FIXED POINT THEORY
Donal O'Regan
Abstract. In this paper we establish new fixed point theory and Leray-Schauder type alternatives for KKM type maps. The arguments are based on new composition and product properties for KKM type maps and an Urysohn type lemma in completely regular spaces.
2020 Mathematics Subject Classification: 47H10; 54H25.
Keywords: Fixed points; KKM maps; Leray--Schauder alternatives
References
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Received: July 08, 2026; Accepted: September 21, 2026
Published electronically: September 24, 2026
Published electronically: September 24, 2026
