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 Fixed points of asymptotically nonexpansive mappings in the intermediate sense in CAT(0) spaces Commun. Korean Math. Soc. 2013 Vol. 28, No. 1, 107-121 https://doi.org/10.4134/CKMS.2013.28.1.107Printed January 31, 2013 Mujahid Abbas, Balwant Singh Thakur, and Dipti Thakur Lahore University of Management Sciences, Pt.Ravishankar Shukla University, Pt.Ravishankar Shukla University Abstract : The purpose of this paper is to investigate the demiclosed principle, the existence theorems and convergence theorems in CAT(0) spaces for a class of mappings which is essentially wider than that of asymptotically nonexpansive mappings. The structure of fixed point set of such mappings is also studied. Our results generalize, unify and extend several comparable results in the existing literature. Keywords : CAT(0) space, asymptotically nonexpansive mapping in the intermediate sense, demiclosed principle, $\Delta$-convergence, iterative approximation, strong convergence, common fixed point MSC numbers : 47H09, 47H10 Downloads: Full-text PDF

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