Convergence on Composite Iterative Schemes for Nonexpansive Mappings in Banach Spaces
Let E be a reflexive Banach space with a uniformly Gâteaux differentiable norm. Suppose that every weakly compact convex subset of E has the fixed point property for nonexpansive mappings. Let C be a nonempty closed convex subset of E, f:C  →  C a contractive mapping (or...
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
SpringerOpen
2008
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/16da234b8dba4d378fb788dfd6c77de2 |
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| Sumario: | Let E be a reflexive Banach space with a uniformly Gâteaux differentiable norm. Suppose that every weakly compact convex subset of E has the fixed point property for nonexpansive mappings. Let C be a nonempty closed convex subset of E, f:C  →  C a contractive mapping (or a weakly contractive mapping), and T:C  →  C nonexpansive mapping with the fixed point set F(T)  ≠  ∅. Let {xn} be generated by a new composite iterative scheme: yn=λnf(xn)+(1−λn)Txn, xn+1=(1−βn)yn+βnTyn, (n≥0). It is proved that {xn} converges strongly to a point in F(T), which is a solution of certain variational inequality provided that the sequence {λn}⊂(0,1) satisfies limn→∞λn=0 and ∑n=1∞λn=∞, {βn}⊂[0,a) for some 0<a<1 and the sequence {xn} is asymptotically regular. |
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