tailieunhanh - Báo cáo hóa học: "AN APPROXIMATION METHOD FOR CONTINUOUS PSEUDOCONTRACTIVE MAPPINGS"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: AN APPROXIMATION METHOD FOR CONTINUOUS PSEUDOCONTRACTIVE MAPPINGS | AN APPROXIMATION METHOD FOR CONTINUOUS PSEUDOCONTRACTIVE MAPPINGS YISHENG SONG AND RUDONG CHEN Received 20 March 2006 Revised 24 May 2006 Accepted 28 May 2006 Let K be a closed convex subset of a real Banach space E T K i K is continuous pseudo-contractive mapping and f K i K is a fixed L-Lipschitzian strongly pseudocontractive mapping. For any t e 0 1 let xt be the unique fixed point of tf 1 - t T. We prove that if T has a fixed point and E has uniformly Gateaux differentiable norm such that every nonempty closed bounded convex subset of K has the fixed point property for nonex-pansive self-mappings then xt converges to a fixed point of T as t approaches to 0. The results presented extend and improve the corresponding results of Morales and Jung 2000 and Hong-Kun Xu 2004 . Copyright 2006 Y. Song and R. Chen. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. Introduction and preliminaries Let E be a real Banach space and let J denote the normalized duality mapping from E into 2E given by J x f e E x f llxHH f II l xh II f Hl for all x e E where E denotes the dual space of E and denotes the generalized duality pairing. If E is strictly convex then J is single-valued. In the sequel we will denote the single-valued duality mapping by j and denote F T x e E Tx x . In Banach space E the following result the subdifferential inequality is well known 1 5 . For all x y e E for all j x y e J x y and for all j x e J x xh2 2 y j x x yll2 xh2 2 y j x y . Recall that the norm of E is said to be Gateaux differentiable and E is said to be smooth if the limit 1 tyll-llxll f-ic t Hindawi Publishing Corporation Journal of Inequalities and Applications Volume 2006 Article ID 28950 Pages 1-9 DOI JIA 2006 28950 2 Continuous pseudocontractive mappings exists for each x y on the unit sphere S E of E. Moreover if for

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