期刊
NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS
卷 74, 期 16, 页码 5253-5267出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.na.2011.04.028
关键词
Fixed points; Proof mining; Pseudocontractive mappings
资金
- German Science Foundation (DFG) [KO 1737/5-1]
This paper gives an explicit and effective rate of convergence for an asymptotic regularity result. parallel to Tx(n) - x(n)parallel to -> 0 due to Chidume and Zegeye in 2004 [14] where (x(n)) is a certain perturbed Krasnoselski-Mann iteration schema for Lipschitz pseudocontractive self-mappings T of closed and convex subsets of a real Banach space. We also give a qualitative strengthening of the theorem by Chidume and Zegeye, by weakening the assumption of the existence of a fixed point. For the bounded case, our bound is polynomial in the data involved. (C) 2011 Elsevier Ltd. All rights reserved.
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