Results 41 to 50 of about 107 (98)

A remark on Gwinner′s existence theorem on variational inequality problem

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 24, Issue 8, Page 573-575, 2000., 2000
Gwinner (1981) proved an existence theorem for a variational inequality problem involving an upper semicontinuous multifunction with compact convex values. The aim of this paper is to solve this problem for a multifunction with open inverse values.
V. Vetrivel, S. Nanda
wiley   +1 more source

An inertial forward–backward algorithm for the minimization of the sum of two nonconvex functions

open access: yesEURO Journal on Computational Optimization, 2016
We propose a forward–backward proximal-type algorithm with inertial/memory effects for minimizing the sum of a nonsmooth function with a smooth one in the nonconvex setting.
Radu Ioan Boţ   +2 more
doaj   +1 more source

A New Filled Function for Global Optimization

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2023
The filled function method has recently become very popular in optimization theory, as it is an e cient and e ective method for finding the global minimizer of multimodal functions.
Şahiner Ahmet   +2 more
doaj   +1 more source

General algorithm and sensitivity analysis for variational inequalities

open access: yesInternational Journal of Stochastic Analysis, Volume 5, Issue 1, Page 29-41, 1992., 1991
The fixed point technique is used to prove the existence of a solution for a class of variational inequalities related to odd order boundary value problems, and to suggest a general algorithm. We also study the sensitivity analysis for these variational inequalities and complementarity problems using the projection technique.
Muhammad Aslam Noor
wiley   +1 more source

A new branch and bound algorithm for minimax ratios problems

open access: yesOpen Mathematics, 2017
This study presents an efficient branch and bound algorithm for globally solving the minimax fractional programming problem (MFP). By introducing an auxiliary variable, an equivalent problem is firstly constructed and the convex relaxation programming ...
Zhao Yingfeng, Liu Sanyang, Jiao Hongwei
doaj   +1 more source

On nonlinear variational inequalities

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 14, Issue 2, Page 399-402, 1991., 1990
The fixed point technique is used to prove the existence of a solution for a class of nonlinear variational inequalities related with odd order constrained boundary value problems and to suggest an iterative algorithm to compute the approximate solution.
Muhammed Aslam Noor
wiley   +1 more source

Multifacility location problems on a sphere

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 10, Issue 3, Page 583-595, 1987., 1987
A unified approach to multisource location problems on a sphere is presented. Euclidean, squared Euclidean and the great circle distances are considered. An algorithm is formulated and its convergence properties are investigated.
Turgut Aykin, A. J. G. Babu
wiley   +1 more source

A modified RMIL conjugate gradient-based projection algorithm for constrained nonlinear equations: application to image denoising

open access: yesDemonstratio Mathematica
In this paper, a modified Rivaie-Mohd-Ismail-Leong (RMIL) conjugate gradient-based projection algorithm for constrained nonlinear equations is proposed, which integrates projection techniques and line search approaches to enhance solution accuracy and ...
Wang Kai, Li Dandan, Wang Songhua
doaj   +1 more source

A nonlinear preconditioner for optimum experimental design problems

open access: yesEURO Journal on Computational Optimization, 2015
We show how to efficiently compute A-optimal experimental designs, which are formulated in terms of the minimization of the trace of the covariance matrix of the underlying regression process, using quasi-Newton sequential quadratic programming methods ...
Mario S. Mommer   +3 more
doaj   +1 more source

Hair fragility (trichorrhexis nodosa) in alopecic Pomeranian dogs

open access: yesVeterinary Dermatology, Volume 36, Issue 1, Page 64-73, February 2025.
Background – Alopecia associated with hair cycle arrest (HCA, Alopecia X) is well‐recognised in Pomeranian dogs. The authors are unaware of reports of hair fragility in affected dogs. Hypothesis/Objectives – Following the observation of frequent hair shaft abnormalities in alopecic Pomeranians, we hypothesised that hair fragility events would be more ...
Erin Brennan   +6 more
wiley   +1 more source

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