Results 11 to 20 of about 137 (132)

Strong convergence of a self-adaptive inertial Tseng's extragradient method for pseudomonotone variational inequalities and fixed point problems

open access: yesOpen Mathematics, 2022
In this paper, we study the problem of finding a common solution of the pseudomonotone variational inequality problem and fixed point problem for demicontractive mappings.
Uzor Victor Amarachi   +2 more
doaj   +1 more source

A new elementary proof for M-stationarity under MPCC-GCQ for mathematical programs with complementarity constraints [PDF]

open access: yesJournal of Nonsmooth Analysis and Optimization, 2021
It is known in the literature that local minimizers of mathematical programs with complementarity constraints (MPCCs) are so-called M-stationary points, if a weak MPCC-tailored Guignard constraint qualification (called MPCC-GCQ) holds.
Felix Harder
doaj   +1 more source

On implicit variables in optimization theory [PDF]

open access: yesJournal of Nonsmooth Analysis and Optimization, 2021
Implicit variables of a mathematical program are variables which do not need to be optimized but are used to model feasibility conditions. They frequently appear in several different problem classes of optimization theory comprising bilevel programming ...
Matúš Benko, Patrick Mehlitz
doaj   +1 more source

Relations between Abs-Normal NLPs and MPCCs. Part 2: Weak Constraint Qualifications [PDF]

open access: yesJournal of Nonsmooth Analysis and Optimization, 2021
This work continues an ongoing effort to compare non-smooth optimization problems in abs-normal form to Mathematical Programs with Complementarity Constraints (MPCCs).
Lisa C. Hegerhorst-Schultchen   +2 more
doaj   +1 more source

Well-posedness for bilevel vector equilibrium problems with variable domination structures

open access: yesOpen Mathematics, 2023
In this article, well-posedness for two types of bilevel vector equilibrium problems with variable domination structures are introduced and studied. With the help of cosmically upper continuity or Hausdorff upper semi-continuity for variable domination ...
Xu Yu-ping   +3 more
doaj   +1 more source

A self-adaptive inertial extragradient method for a class of split pseudomonotone variational inequality problems

open access: yesOpen Mathematics, 2023
In this article, we study a class of pseudomonotone split variational inequality problems (VIPs) with non-Lipschitz operator. We propose a new inertial extragradient method with self-adaptive step sizes for finding the solution to the aforementioned ...
Owolabi Abd-Semii Oluwatosin-Enitan   +2 more
doaj   +1 more source

M-matrix and inverse M-matrix extensions

open access: yesSpecial Matrices, 2020
A class of matrices that simultaneously generalizes the M-matrices and the inverse M-matrices is brought forward and its properties are reviewed. It is interesting to see how this class bridges the properties of the matrices it generalizes and provides a
McDonald J.J.   +6 more
doaj   +1 more source

On the solution of NP-hard linear complementarity problems [PDF]

open access: yes, 2002
mathematical programming, complementarity, global optimization, enumerative algorithms, 90C33, 65K10,
Isabel Martins Ribeiro   +8 more
core   +1 more source

Least Change Secant Update Methods for Nonlinear Complementarity Problem

open access: yesIngeniería y Ciencia, 2015
In this work, we introduce a family of Least Change Secant Update Methods for solving Nonlinear Complementarity Problems based on its reformulation as a nonsmooth system using the one-parametric class of nonlinear complementarity functions introduced by ...
Favián Arenas A   +2 more
doaj   +1 more source

Two modifications of the inertial Tseng extragradient method with self-adaptive step size for solving monotone variational inequality problems

open access: yesDemonstratio Mathematica, 2020
In this work, we introduce two new inertial-type algorithms for solving variational inequality problems (VIPs) with monotone and Lipschitz continuous mappings in real Hilbert spaces.
Alakoya Timilehin Opeyemi   +2 more
doaj   +1 more source

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