Convergence of hybrid steepest descent method for variational inequalities in Banach spaces

Convergence of hybrid steepest descent method for variational inequalities in Banach spaces

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Article ID: iaor20116369
Volume: 217
Issue: 23
Start Page Number: 9499
End Page Number: 9507
Publication Date: Aug 2011
Journal: Applied Mathematics and Computation
Authors: , ,
Keywords: steepest descent, Banach space
Abstract:

Let E be a q‐uniformly smooth real Banach space with constant d q , q >1. Let T i : EE, i =1,2,…, r be a finite family of nonexpansive mappings with K i = 1 r Fix ( T i ) equ1 and K = Fix(T r T r‐1T 1)= Fix(T 1 T r T 2)=···= Fix(T r‐1 T r‐2T r ). Let G : EE be an η‐strongly accretive map which is also κ‐Lipschitzian. A hybrid steepest descent method introduced by Yamada and studied by various authors is proved to converge strongly to the unique solution of the variational inequality problem VI(G, K) in q‐uniformly smooth real Banach space, in particular, in L p spaces 1< p <∞.

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