Results 141 to 150 of about 884 (184)
Some of the next articles are maybe not open access.

Lagrangian Subgradients

Management Science, 1970
There is a dual program linked with every nonlinear program. The dual objective function is called the Lagrangian; it is defined in terms of the original problem. This note presents a characterization of the Lagrangian subgradients under general conditions. The theorem follows from a result of Danskin [1] that can be used (see [2]) to characterize the
openaire   +2 more sources

The Proximal Subgradient and Constancy

Canadian Mathematical Bulletin, 1993
AbstractIf f is a lower semicontinuous function mapping a connected open subset of ℝn to (—∞, ∞], and if the proximal subgradient of f reduces to zero wherever it exists, then f is constant.
Clarke, F. H., Redheffer, R. M.
openaire   +1 more source

A reduced subgradient algorithm

1987
The authors describe an iterative method for the approximate solution of nondifferentiable convex programming problems. The problems incorporate linear equality and inequality constraints \((Ax=b\), \(x\geq 0)\); the method combines Wolfe's well-known reduced gradient algorithm with the bundle method of nonsmooth optimization.
Bihain, André   +2 more
openaire   +2 more sources

A note on the existence of subgradients

Mathematical Programming, 1982
We describe an apparently novel way of constructing the subgradient of a convex function defined on a finite dimensional vector space.
openaire   +1 more source

Subgradient and ε-Subgradient Methods

1998
Let us consider a convex programming problem (CPP): $$find{f^*} = \inf {f_0}\left( x \right),x = \left( {{x^{\left( 1 \right)}},...,{x^{\left( n \right)}}} \right) \in {E^n},$$ (2.1) subject to constraints: $${f_i}\left( x \right)\quad 0,\quad i \in \left\{ {1,2, \ldots ,m} \right\} = I;$$ (2.2) $$x \in X\quad \subseteq {E^n},$$
openaire   +1 more source

Subgradient Algorithm on Riemannian Manifolds

Journal of Optimization Theory and Applications, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ferreira, O. P., Oliveira, P. R.
openaire   +2 more sources

A subgradient method for multiobjective optimization

Computational Optimization and Applications, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
João Xavier da Cruz Neto   +3 more
openaire   +1 more source

Accelerating the convergence of subgradient optimisation

European Journal of Operational Research, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Barrie M. Baker, Janice Sheasby
openaire   +2 more sources

Nondifferentiable Optimisation Subgradient and ε — Subgradient Methods

1976
We give some ideas which lead to descent methods for minimizing nondifferentiable functions. Such methods have been published in several papers and they all involve the same concept, namely the e — subdifferential.
openaire   +1 more source

An Incremental Subgradient Method on Riemannian Manifolds

Journal of Optimization Theory and Applications, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Peng Zhang 0036, Gejun Bao
openaire   +2 more sources

Home - About - Disclaimer - Privacy