Results 61 to 70 of about 1,594 (145)

A strong convergence theorem for equilibrium problems and split feasibility problems in Hilbert spaces

open access: yes, 2014
The main purpose of this paper is to introduce an iterative algorithm for equilibrium problems and split feasibility problems in Hilbert spaces. Under suitable conditions we prove that the sequence converges strongly to a common element of the set of ...
Jinfang Tang, Shih-sen Chang, Fei Yuan
semanticscholar   +1 more source

Integer Polynomial Optimization in Fixed Dimension

open access: yes, 2004
We classify, according to their computational complexity, integer optimization problems whose constraints and objective functions are polynomials with integer coefficients and the number of variables is fixed.
Barvinok A. I.   +9 more
core   +4 more sources

Multiobjective reverse logistics model for inventory management with environmental impacts: An application in industry

open access: yesIntelligent Systems with Applications, 2022
We propose new mathematical models of inventory management in a reverse logistics system. The proposed models extend the model introduced by Nahmias and Rivera with the assumption that the demand for newly produced and repaired (remanufacturing) items ...
M. Forkan, M.M. Rizvi, M.A.M. Chowdhury
doaj  

Tangent cones, starshape and convexity

open access: yes, 1978
International Journal of Mathematics and Mathematical Sciences, Volume 1, Issue 4, Page 459-477, 1978.
J. M. Borwein
wiley   +1 more source

Symmetric duality for a higher-order nondifferentiable multiobjective programming problem

open access: yes, 2015
In this paper, a pair of Wolfe type higher-order nondifferentiable symmetric dual programs over arbitrary cones has been studied and then well-suited duality relations have been established considering K-F convexity assumptions.
I. P. Debnath   +2 more
semanticscholar   +1 more source

Using a Factored Dual in Augmented Lagrangian Methods for Semidefinite Programming

open access: yes, 2018
In the context of augmented Lagrangian approaches for solving semidefinite programming problems, we investigate the possibility of eliminating the positive semidefinite constraint on the dual matrix by employing a factorization. Hints on how to deal with
De Santis, Marianna   +2 more
core   +1 more source

On ε-optimality conditions for multiobjective fractional optimization problems

open access: yes, 2011
A multiobjective fractional optimization problem (MFP), which consists of more than two fractional objective functions with convex numerator functions and convex denominator functions, finitely many convex constraint functions, and a geometric constraint
M. Kim, G. Kim, G. Lee
semanticscholar   +1 more source

First-Order Methods for Convex Optimization

open access: yesEURO Journal on Computational Optimization, 2021
First-order methods for solving convex optimization problems have been at the forefront of mathematical optimization in the last 20 years. The rapid development of this important class of algorithms is motivated by the success stories reported in various
Pavel Dvurechensky   +2 more
doaj  

Higher-order symmetric duality for a class of multiobjective fractional programming problems

open access: yes, 2012
In this paper, a pair of nondifferentiable multiobjective fractional programming problems is formulated. For a differentiable function, we introduce the definition of higher-order (F, α, ρ, d)-convexity, which extends some kinds of generalized convexity,
Gao Ying
semanticscholar   +1 more source

Presolving linear bilevel optimization problems

open access: yesEURO Journal on Computational Optimization, 2021
Linear bilevel optimization problems are known to be strongly NP-hard and the computational techniques to solve these problems are often motivated by techniques from single-level mixed-integer optimization.
Thomas Kleinert   +3 more
doaj  

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