A general lemma for fixed-point theorems involving more than two maps in D-metric spaces with applications
B. C. Dhage,1Smrati Arya,2and Jeong Sheok Ume3
Received26 Jun 2002
Abstract
A general procedural lemma for fixed-point theorems for three and four
maps in a D-metric space is proved, and it is further applied for
proving the common fixed-point theorems of three and four maps in a
D-metric space satisfying certain contractive conditions.