Weak Contractions, Common Fixed Points, and Invariant Approximations

The existence of common fixed points is established for the mappings, where T is (f,θ,L)-weak contraction on a nonempty subset of a Banach space. As application, some results on the invariant best approximation are proved. Our results unify and substantially improve several recent results...

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Bibliographic Details
Main Authors: Nawab Hussain, Yeol Je Cho
Format: Article
Language:English
Published: SpringerOpen 2009-01-01
Series:Journal of Inequalities and Applications
Online Access:http://dx.doi.org/10.1155/2009/390634