International Journal of Mathematics and Mathematical Sciences
Volume 16 (1993), Issue 1, Pages 95-100
doi:10.1155/S0161171293000110

Coincidence and fixed points for compatible and relatively nonexpansive maps

Gerald Jungck

Department of Mathematics, Bradley University, Peoria 61625, IL, USA

Abstract

The concept of relatively nonexpansive maps is introduced. Fixed point and coincidence results for families of four self maps of metric spaces are obtained. Non-continuous compatible and relatively nonexpansive maps on star-shaped compact subsets of normed linear spaces are highlighted, and two theorems of Dotson are generalized.