Stability analysis of split equality and split feasibility problems

Vu Thi Huong (), Hong-Kun Xu () and Nguyen Dong Yen ()
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Vu Thi Huong: Zuse Institute Berlin
Hong-Kun Xu: Hangzhou Dianzi University
Nguyen Dong Yen: Vietnam Academy of Science and Technology

Journal of Global Optimization, 2025, vol. 92, issue 2, No 7, 429 pages

Abstract: Abstract In this paper, for the first time in the literature, we study the stability of solutions of two classes of feasibility (i.e., split equality and split feasibility) problems by set-valued and variational analysis techniques. Our idea is to equivalently reformulate the feasibility problems as parametric generalized equations to which set-valued and variational analysis techniques apply. Sufficient conditions, as well as necessary conditions, for the Lipschitz-likeness of the involved solution maps are proved by exploiting special structures of the problems and by using an advanced result of B.S. Mordukhovich [J. Global Optim. 28, 347–362 (2004)]. These conditions stand on a solid interaction among all the input data by means of their dual counterparts, which are transposes of matrices and regular/limiting normal cones to sets. Several examples are presented to illustrate how the obtained results work in practice and also show that the assumption on the existence of a nonzero solution used in the necessity conditions cannot be lifted.

Keywords: Split feasibility problem; Split equality problem; Stability analysis; Lipschitz-likeness; Parametric generalized equation; 49J53; 49K40; 65K10; 90C25; 90C31 (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1007/s10898-025-01469-6

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