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Strong convergence theorems of k -strict pseudo-contractions in Hilbert spaces

Xiao Long QinShin Min KangMei Juan Shang — 2009

Czechoslovak Mathematical Journal

Let K be a nonempty closed convex subset of a real Hilbert space H such that K ± K K , T K H a k -strict pseudo-contraction for some 0 k < 1 such that F ( T ) = { x K x = T x } . Consider the following iterative algorithm given by x 1 K , x n + 1 = α n γ f ( x n ) + β n x n + ( ( 1 - β n ) I - α n A ) P K S x n , n 1 , where S K H is defined by S x = k x + ( 1 - k ) T x , P K is the metric projection of H onto K , A is a strongly positive linear bounded self-adjoint operator, f is a contraction. It is proved that the sequence { x n } generated by the above iterative algorithm converges strongly to a fixed point of T , which solves a variational inequality related...

Strong convergence of an iterative method for variational inequality problems and fixed point problems

Xiao Long QinShin Min KangYong Fu SuMei Juan Shang — 2009

Archivum Mathematicum

In this paper, we introduce a general iterative scheme to investigate the problem of finding a common element of the fixed point set of a strict pseudocontraction and the solution set of a variational inequality problem for a relaxed cocoercive mapping by viscosity approximate methods. Strong convergence theorems are established in a real Hilbert space.

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