Abstract
Let (X; d) be a complete metric space and let f; g : X ! X betwo mappings which satisfy a ( ')-weak contraction condition or generalized( ')-weak contraction condition. Then f and g have a unique common xedpoint. Our results extend previous results given by Ciric (1971), Rhoades (2001),Branciari (2002), Rhoades (2003), Abbas and Ali Khan (2009), Zhang and Song(2009) and Moradi at. el. (2011).
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