Convergence of a Halpern-type iteration algorithm for a class of pseudo-contractive mappings |
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Authors: | C.O. Chidume G. De Souza |
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Affiliation: | aDepartment of Mathematics and Statistics, Auburn University, Auburn, AL, USA |
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Abstract: | Let E be a real reflexive Banach space with uniformly Gâteaux differentiable norm. Let K be a nonempty bounded closed and convex subset of E. Let T:K→K be a strictly pseudo-contractive map and let L>0 denote its Lipschitz constant. Assume F(T){xK:Tx=x}≠0/ and let zF(T). Fix δ(0,1) and let δ* be such that δ*δL(0,1). Define , where δn(0,1) and limδn=0. Let {αn} be a real sequence in (0,1) which satisfies the following conditions: . For arbitrary x0,uK, define a sequence {xn}K by xn+1=αnu+(1−αn)Snxn. Then, {xn} converges strongly to a fixed point of T. |
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Keywords: | Lipschitzian maps Pseudo-contractive maps Halpern scheme Stictly pseudo-contractive maps in the sense of Browder and Petryshyn |
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