Results 61 to 70 of about 1,344 (121)

A filled function method for nonlinear systems of equalities and inequalities

open access: yes, 2012
In this paper a filled function method is suggested for solving nonlinear systems of equalities and inequalities. Firstly, the original problem is reformulated into an equivalent constrained global optimization problem.
Z. Wan, Liuyang Yuan, Jiawei Chen
semanticscholar   +1 more source

A smoothing Newton-type method for second-order cone programming problems based on a new smoothing Fischer-Burmeister function

open access: yes, 2011
A new smoothing function of the well known Fischer-Burmeister function is given. Based on this new function, a smoothing Newton-type method is proposed for solving second-order cone programming.
Liang Fang, Zengzhe Feng
semanticscholar   +1 more source

Performance Bounds For Co-/Sparse Box Constrained Signal Recovery

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2019
The recovery of structured signals from a few linear measurements is a central point in both compressed sensing (CS) and discrete tomography. In CS the signal structure is described by means of a low complexity model e.g. co-/sparsity.
Kuske Jan, Petra Stefania
doaj   +1 more source

A novel four-term conjugate gradient method for large-scale optimization problems involving formulation and application

open access: yesFranklin Open
The conjugate gradient (CG) method is widely employed for solving unconstrained optimization problems due to its independence from second derivatives or their approximations. It has found extensive applications in fields such as image restoration, neural
Ahmad Alhawarat   +4 more
doaj   +1 more source

Discrete time pontryagin principles in banach spaces

open access: yes, 2017
The aim of this paper is to establish Pontryagin's principles in a dicrete-time infinite-horizon setting when the state variables and the control variables belong to infinite dimensional Banach spaces. In comparison with previous results on this question,
Bachir, Mohammed, Blot, Joël
core  

PONTRYAGIN PRINCIPLES IN INFINITE HORIZON IN PRESENCE OF ASYMPTOTICAL CONSTRAINTS

open access: yes, 2015
We establish necessary conditions of optimality for discrete-time infinite-horizon optimal control in presence of constraints at infinity. These necessary conditions are in form of weak and strong Pontryagin principles.
Blot, Joël, Ngo, Thoi-Nhan
core   +2 more sources

Infinite Dimensional Multipliers and Pontryagin Principles for Discrete-Time Problems

open access: yes, 2016
The aim of this paper is to provide improvments to Pontryagin principles in infinite-horizon discrete-time framework when the space of states and of space of controls are infinite-dimensional.
Bachir, Mohammed, Blot, Joel
core   +2 more sources

Local convergence of tensor methods. [PDF]

open access: yesMath Program, 2022
Doikov N, Nesterov Y.
europepmc   +1 more source

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