نتایج جستجو برای: primal rings

تعداد نتایج: 53952  

Journal: :Optimization Methods and Software 2008
Roman A. Polyak

We introduce and study the primal-dual exterior point (PDEP) method for convex optimization problems. The PDEP is based on the Nonlinear Rescaling (NR) multipliers method with dynamic scaling parameters update. The NR method at each step alternates finding the unconstrained minimizer of the Lagrangian for the equivalent problem with both Lagrange multipliers and scaling parameters vectors updat...

2005
Roman A. Polyak

Received: date / Revised version: date Abstract. A class Ψ of strongly concave and smooth functions ψ : R → R with specific properties is used to transform the terms of the classical Lagrangian associated with the constraints. The transformation is scaled by a positive vector of scaling parameters, one for each constraint. Each step of the Lagrangian Transformation (LT) method alternates uncons...

2005

The primal-dual method (or primal-dual schema) is another means of solving linear programs. The basic idea of this method is to start from a feasible solution y to the dual program, then attempt to find a feasible solution x to the primal program that satisfies the complementary slackness conditions. If such an x cannot be found, it turns out that we can find a better y in terms of its objectiv...

Journal: :Math. Program. 1999
Jonathan Eckstein Michael C. Ferris

This paper describes several methods for solving nonlinear complementarity problems. A general duality framework for pairs of monotone operators is developed and then applied to the monotone complementarity problem, obtaining primal, dual, and primal-dual formulations. We derive Bregman-function-based generalized proximal algorithms for each of these formulations, generating three classes of co...

Journal: :CoRR 2014
Yuling Jiao Bangti Jin Xiliang Lu

We develop a primal dual active set with continuation algorithm for solving the l-regularized least-squares problem that frequently arises in compressed sensing. The algorithm couples the the primal dual active set method with a continuation strategy on the regularization parameter. At each inner iteration, it first identifies the active set from both primal and dual variables, and then updates...

2016
Leonard Gillman Melvin Henriksen Harvey Mudd

E. Momtahan

We show  that a projective maximal submodule of afinitely generated, regular, extending module is a directsummand. Hence, every finitely generated, regular, extendingmodule with projective maximal submodules is semisimple. As aconsequence, we observe that every regular, hereditary, extendingmodule is semisimple. This generalizes and simplifies a result of  Dung and   Smith. As another consequen...

Journal: :Annals of Pure and Applied Logic 1991

Journal: :Computational Optimization and Applications 2010

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