On the closedness of sets with the fixed point property for contractions
Keywords:
fixed point property, complete metric spaces, Banach spacesAbstract
It is proved by examples that there exist (connected) non-closed sets with the fixed point property for contractions in complete metric spaces. In a Banach space, a convex set with nonvoid interior having the fixed point property for contractions is necessarily closed.Downloads
References
E. H. Connell, Properties of fixed point spaces, Proc. Amer. Math. Soc. 10 (1959), pp. 974-979.
T. K. Hu, On afixed point theorem for metric spaces, Amer. Math. Monthly 74 (1967), 436-437.
P. V. Subrahmanyan, Completeness and fixed points, Monatsch. für Math. 80 (1975), pp. 325-330.
I. A. Rus, Maximal Fixed Point Structures, "Zilele academice clujene", 18-23 Nov. 1996.
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