Results 1 to 10 of about 1,574 (118)

Closedness type regularity conditions for surjectivity results involving the sum of two maximal monotone operators

open access: yesOpen Mathematics, 2011
In this note we provide regularity conditions of closedness type which guarantee some surjectivity results concerning the sum of two maximal monotone operators by using representative functions.
Ioan Boţ Radu, Grad Sorin-Mihai
doaj   +2 more sources

Attouch-Théra Duality, Generalized Cycles, and Gap Vectors [PDF]

open access: yesSIAM Journal on Optimization, 2021
Using the Attouch-Théra duality, we study the cycles, gap vectors and fixed point sets of compositions of proximal mappings. Sufficient conditions are given for the existence of cycles and gap vectors.
Salihah Alwadani   +2 more
semanticscholar   +1 more source

Designing experiments informed by observational studies

open access: yesJournal of Causal Inference, 2021
The increasing availability of passively observed data has yielded a growing interest in “data fusion” methods, which involve merging data from observational and experimental sources to draw causal conclusions.
Rosenman Evan T. R., Owen Art B.
doaj   +1 more source

Solving Composite Fixed Point Problems with Block Updates

open access: yesAdvances in Nonlinear Analysis, 2021
Various strategies are available to construct iteratively a common fixed point of nonexpansive operators by activating only a block of operators at each iteration.
Combettes Patrick L., Glaudin Lilian E.
doaj   +1 more source

An Efficient Nonconvex Regularization Method for Wavelet Frame Based Compressed Sensing Recovery

open access: yesJournal of Computations & Modelling, 2021
In this paper, we propose a variation model which takes advantage of the wavelet tight frame and nonconvex shrinkage penalties for compressed sensing recovery.
Xiao-Juan Yang, Jin Jing
semanticscholar   +1 more source

Firmly nonexpansive mappings in classes of geodesic spaces [PDF]

open access: yes, 2012
Firmly nonexpansive mappings play an important role in metric fixed point theory and optimization due to their correspondence with maximal monotone operators.
David Ariza-Ruiz   +2 more
semanticscholar   +1 more source

A new conjugate gradient method for acceleration of gradient descent algorithms

open access: yesMoroccan Journal of Pure and Applied Analysis, 2021
An accelerated of the steepest descent method for solving unconstrained optimization problems is presented. which propose a fundamentally different conjugate gradient method, in which the well-known parameter βk is computed by an new formula.
Rahali Noureddine   +2 more
doaj   +1 more source

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   +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   +1 more source

New inertial forward–backward algorithm for convex minimization with applications

open access: yesDemonstratio Mathematica, 2023
In this work, we present a new proximal gradient algorithm based on Tseng’s extragradient method and an inertial technique to solve the convex minimization problem in real Hilbert spaces.
Kankam Kunrada   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy