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On spherical convergence, convexity, and block iterative projection algorithms in Hilbert space - MaRDI portal

On spherical convergence, convexity, and block iterative projection algorithms in Hilbert space (Q1272854)

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scientific article; zbMATH DE number 1228535
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On spherical convergence, convexity, and block iterative projection algorithms in Hilbert space
scientific article; zbMATH DE number 1228535

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    On spherical convergence, convexity, and block iterative projection algorithms in Hilbert space (English)
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    6 July 1999
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    A sequence \((x_n)\) in a Hilbert space is called to be ``spherical'' if there exists \(u\) such that \(\lim | | x_n-u| | \) exists and is finite. It is shown that for a large class of nonexpansive discrete-time processes in a Hilbert space, the iterates \((x_n)\) are spherically convergent. Spherical convergence of the general block iterative projection scheme is established.
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    projection methods
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    convex sets
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    weak convergence
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    nonexpansive discrete-time processes
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    block iterative projection scheme
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