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Set regularities and feasibility problems

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Abstract

We synthesize and unify notions of regularity, both of individual sets and of collections of sets, as they appear in the convergence theory of projection methods for consistent feasibility problems. Several new characterizations of regularities are presented which shed light on the relations between seemingly different ideas and point to possible necessary conditions for local linear convergence of fundamental algorithms.

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Notes

  1. We are particulary indebted to Alex Ioffe for thoughtful and persuasive discussions.

  2. We refer on several occasions to the preprint [22] because some definitions and results present there and used in the current article are not included in the published version [23].

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Author information

Authors and Affiliations

  1. Centre for Informatics and Applied Optimization, Federation University Australia, POB 663, Ballarat, VIC, 3350, Australia

    Alexander Y. Kruger

  2. Institut für Numerische und Angewandte Mathematik, Universität Göttingen, 37083, Göttingen, Germany

    D. Russell Luke & Nguyen H. Thao

  3. Department of Mathematics, Teacher College, Cantho University, Cantho, Vietnam

    Nguyen H. Thao

Authors
  1. Alexander Y. Kruger
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  2. D. Russell Luke
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  3. Nguyen H. Thao
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Corresponding author

Correspondence to D. Russell Luke.

Additional information

AYK was supported by Australian Research Council, project DP160100854.

DRL was supported in part by German Israeli Foundation Grant G-1253-304.6 and Deutsche Forschungsgemeinschaft Research Training Grant 2088 TP-B5.

NHT was supported by German Israeli Foundation Grant G-1253-304.6.

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Kruger, A.Y., Luke, D.R. & Thao, N.H. Set regularities and feasibility problems. Math. Program. 168, 279–311 (2018). https://doi.org/10.1007/s10107-016-1039-x

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