Common Fixed Points for Maps on Topological Vector Space Valued Cone Metric Spaces
نویسندگان
چکیده
Huang and Zhang 1 generalized the notion of metric space by replacing the set of real numbers by ordered Banach space, deffined a cone metric space, and established some fixed point theorems for contractive type mappings in a normal cone metric space. Subsequently, several other authors 2–5 studied the existence of common fixed point of mappings satisfying a contractive type condition in normal cone metric spaces. Afterwards, Rezapour and Hamlbarani 6 studied fixed point theorems of contractive type mappings by omitting the assumption of normality in cone metric spaces see also 7–14 . In this paper we obtain common fixed points for a pair of self-mappings satisfying a generalized contractive type condition without the assumption of normality in a class of topological vector space valued cone metric spaces which is bigger than that introduced by Huang and Zhang 1 . Let E, τ be always a topological vector space and P a subset of E. Then, P is called a cone whenever
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ورودعنوان ژورنال:
- Int. J. Math. Mathematical Sciences
دوره 2009 شماره
صفحات -
تاریخ انتشار 2009