Abstract

In this paper we use a matrix approach to approximate solutions of variational inequalities in Hilbert spaces. The methods studied combine new or well-known iterative methods (as the original Mann method) with regularized processes that involve regular matrices in the sense of Toeplitz. We obtain ergodic type results and convergence.

Highlights

  • Introduction and resultsThe results presented here will be proved in Section .Let H be a Hilbert space and let f : H → H be a ρ-contraction

  • In this paper our aim is to approximate on Fix(T) the unique solution of a (VIP) when T is a nonspreading mapping, i.e

  • In Mann [ ], taking in account the works of Cesaro, Fejer and Toeplitz, considered the problem to construct a sequence in a convex and compact set C of a Banach space X that converges to a fixed point of a continuous transformation T : C → C

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Summary

Introduction

Introduction and resultsThe results presented here will be proved in Section .Let H be a Hilbert space and let f : H → H be a ρ-contraction. It is well known that if T : H → H is a quasi-nonexpansive mapping, the set of the fixed points Fix(T) is closed and convex and the variational inequality problem (VIP) The weak limits of a regularized sequence that involves a nonspreading mapping and a triangular-Toeplitz matrix are fixed points of T; more precisely, we will prove the following.

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