Results 1 to 10 of about 236 (35)

On duality principles and related convex dual formulations suitable for local and global non-convex variational optimization

open access: yesNonlinear Engineering, 2023
This article develops duality principles, a related convex dual formulation and primal dual formulations suitable for the local and global optimization of non convex primal formulations for a large class of models in physics and engineering.
Botelho Fabio Silva
doaj   +1 more source

Adaptive inexact fast augmented Lagrangian methods for constrained convex optimization [PDF]

open access: yes, 2015
In this paper we analyze several inexact fast augmented Lagrangian methods for solving linearly constrained convex optimization problems. Mainly, our methods rely on the combination of excessive-gap-like smoothing technique developed in [15] and the ...
Necoara, Ion   +2 more
core   +3 more sources

Optimal pricing for optimal transport [PDF]

open access: yes, 2014
Suppose that $c(x,y)$ is the cost of transporting a unit of mass from $x\in X$ to $y\in Y$ and suppose that a mass distribution $\mu$ on $X$ is transported optimally (so that the total cost of transportation is minimal) to the mass distribution $\nu$ on $
Bartz, Sedi, Reich, Simeon
core   +1 more source

On the connection of facially exposed and nice cones [PDF]

open access: yes, 2012
A closed convex cone K is called nice, if the set K^* + F^\perp is closed for all F faces of K, where K^* is the dual cone of K, and F^\perp is the orthogonal complement of the linear span of F.
Pataki, Gabor
core   +3 more sources

Fuzzy optimization of primal-dual pair using piecewise linear membership functions [PDF]

open access: yes, 2012
Present paper improves the model of Bector and Chandra [Fuzzy Sets and Systems, 125 (2002) 317-325] on duality in fuzzy linear programming by using non-linear membership functions.
Kumar S., Pandey D.
core   +1 more source

Dualization and discretization of linear-quadratic control problems with bang–bang solutions

open access: yesEURO Journal on Computational Optimization, 2016
We consider linear-quadratic (LQ) control problems, where the control variable appears linearly and is box-constrained. It is well-known that these problems exhibit bang–bang and singular solutions. We assume that the solution is of bang–bang type, which
Walter Alt   +2 more
doaj   +1 more source

Exact duality in semidefinite programming based on elementary reformulations [PDF]

open access: yes, 2015
In semidefinite programming (SDP), unlike in linear programming, Farkas' lemma may fail to prove infeasibility. Here we obtain an exact, short certificate of infeasibility in SDP by an elementary approach: we reformulate any semidefinite system of the ...
Liu, Minghui, Pataki, Gabor
core   +3 more sources

Bad semidefinite programs: they all look the same [PDF]

open access: yes, 2017
Conic linear programs, among them semidefinite programs, often behave pathologically: the optimal values of the primal and dual programs may differ, and may not be attained. We present a novel analysis of these pathological behaviors.
Bauschke H.   +6 more
core   +3 more sources

On nonsmooth multiobjective fractional programming problems involving (p, r)− ρ −(η ,θ)- invex functions [PDF]

open access: yes, 2013
A class of multiobjective fractional programming problems (MFP) is considered where the involved functions are locally Lipschitz. In order to deduce our main results, we introduce the definition of (p,r)−ρ −(η,θ)-invex class about the Clarke ...
Jayswal Anurag   +2 more
core   +1 more source

Constrained Quadratic Risk Minimization via Forward and Backward Stochastic Differential Equations [PDF]

open access: yes, 2017
In this paper we study a continuous-time stochastic linear quadratic control problem arising from mathematical finance. We model the asset dynamics with random market coefficients and portfolio strategies with convex constraints.
Li, Yusong, Zheng, Harry
core   +2 more sources

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