PUBLICATIONS DE L'INSTITUT MATHÉMATIQUE (BEOGRAD) (N.S.) Vol. 47(61), pp. 132136 (1990) 

A COMMON FIXED POINT THEOREM OF WEAKLY COMMUTING MAPPINGSValeriu PopaHigher Education Institute, 5500 Bacau, RomaniaAbstract: By using a weak commutativity condition due to Sessa [2], we establish a common fixed point theorem for four selfmappings of a complete metric space. This result generalizes Theorem 1 of [5]. Classification (MSC2000): 54H25; 47H10 Full text of the article:
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