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Common fixed points for four maps in cone metric spaces. (English) Zbl 1197.54050
Summary: The existence of coincidence points and common fixed points for four mappings satisfying generalized contractive conditions without exploiting the notion of continuity of any map involved therein, in a cone metric space is proved. These results extend, unify and generalize several well known comparable results in the existing literature.
54H25Fixed-point and coincidence theorems in topological spaces
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