Structured backward error analysis for generalized saddle point problems
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DOI: 10.1007/s10444-020-09787-x
Abstract: Recently, the structured backward errors for the generalized saddle point problems with some different structures have been studied by some authors, but their results involve some Kronecker products, the vec-permutation matrices, and the orthogonal projection… read more here.
Keywords: backward errors; saddle point; structured backward; point problems ... See more keywords
A space transformational invasive weed optimization for solving fixed-point problems
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DOI: 10.1007/s10489-017-1021-1
Abstract: Real life problems are used as benchmarks to evaluate the performance of existing, improved and modified evolutionary algorithms. In this paper, we propose a new hybrid method, namely SIWO, by embedding space transformation search (STS)… read more here.
Keywords: space; point problems; invasive weed; optimization ... See more keywords
Semi-convergence analysis of Uzawa–AOR method for singular saddle point problems
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DOI: 10.1007/s40314-015-0233-4
Abstract: Based on AOR and Uzawa methods, this paper presents Uzawa–AOR method for solving a class of singular saddle point problems. We analyze its semi-convergence and the distribution of the eigenvalues of its iterative matrix. The… read more here.
Keywords: saddle point; aor method; point problems; uzawa aor ... See more keywords
On SSOR-like preconditioner for saddle point problems with dominant skew-Hermitian part
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DOI: 10.1080/00207160.2018.1475652
Abstract: ABSTRACT Based on the SSOR-like iteration method proposed by Bai [Numer. Linear Algebra Appl. 23 (2016), pp. 37–60], we present an SSOR-like preconditioner for the saddle point problems whose coefficient matrix has strongly dominant skew-Hermitian… read more here.
Keywords: preconditioner saddle; point problems; ssor like; saddle point ... See more keywords
Semiconvergence of the extended PSS method for singular generalized saddle point problems
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DOI: 10.1080/00207160.2021.1938010
Abstract: Recently, an extension of the positive definite and skew-Hermitian splitting (EPSS) iteration method for nonsingular generalized saddle point problems has been stated by Masoudi and Salkuyeh. In this article, we study the semiconvergence of the… read more here.
Keywords: saddle point; singular generalized; method; generalized saddle ... See more keywords
Inertial methods for fixed point problems and zero point problems of the sum of two monotone mappings
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DOI: 10.1080/02331934.2019.1573240
Abstract: ABSTRACT The purpose of this paper is to investigate the problem of finding a common element of the set of zero points of the sum of two operators and the fixed point set of a… read more here.
Keywords: inertial methods; sum two; point problems; methods fixed ... See more keywords
Modified extragradient algorithms for solving monotone variational inequalities and fixed point problems
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DOI: 10.1080/02331934.2019.1711087
Abstract: In this paper, we investigate the monotone variational inequalities and fixed point problems in Hilbert spaces. Two modified extragradient algorithms are presented for finding a common element of the set of fixed points of a… read more here.
Keywords: modified extragradient; inequalities fixed; point problems; variational inequalities ... See more keywords
Two iterative algorithms for solving the split common fixed point problems
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DOI: 10.2298/fil2013375w
Abstract: The purpose of this paper is to study the split common fixed point problems (SCFP) involved in nonexpansive mappings in real Hilbert space. We introduce two iterative algorithms for finding a solution of the SCFP… read more here.
Keywords: fixed point; two iterative; point problems; iterative algorithms ... See more keywords