In this paper, we propose parallel and cyclic iterative algorithms for solving the multiple-set split equality common fixed-point problem of firmly quasi-nonexpansive operators. We also combine the process of cyclic a...
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In this paper, we propose parallel and cyclic iterative algorithms for solving the multiple-set split equality common fixed-point problem of firmly quasi-nonexpansive operators. We also combine the process of cyclic and parallel iterative methods and propose two mixed iterative algorithms. Our several algorithms do not need any prior information about the operator norms. Under mild assumptions, we prove weak convergence of the proposed iterative sequences in Hilbert spaces. As applications, we obtain several iterative algorithms to solve the multiple-setsplitequalityproblem.
Let H-1, H-2, H-3 be real Hilbert spaces, let A : H-1 -> H-3, B : H-2 -> H-3 be two bounded linear operators. the multiple-set split equality common fixed-point problem (MSECFP) under consideration in this paper...
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Let H-1, H-2, H-3 be real Hilbert spaces, let A : H-1 -> H-3, B : H-2 -> H-3 be two bounded linear operators. the multiple-set split equality common fixed-point problem (MSECFP) under consideration in this paper is to find x is an element of boolean AND(p)(i=1) F(U-i), y is an element of boolean AND(r)(j=1) F(T-j) such that Ax = By, (0.1) where p, r >= 1 are integers, U-i : H-1 -> H-1 (1 <= i <= p) and Tj : H-2 -> H-2 (1 <= j <= r) are quasi-nonexpansive mappings with nonempty fixed-pointsets. Note that, the above problem (1) allows asymmetric and partial relations between the variables x and y. If B = I and H-2 = H-3, then the MSECFP (1) reduces to the multiple-setsplitcommonfixed-pointproblem proposed by Censor et al. In this paper, we introduce mixed cyclic and simultaneous iterative algorithms for the MSECFP (1). We introduce a way of selecting the stepsizes such that the implementation of our algorithms does not need any prior information about the operator norms. Weak convergence results are given.
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