Results 31 to 40 of about 2,669 (290)

The Lagrangian, constraint qualifications and economics

open access: yesMathematical Methods of Operations Research, 2022
AbstractConsidering constrained choice, practitioners and theorists frequently invoke a Lagrangian to generate optimality conditions. Regular use of that vehicle requires, however, some constraintqualification. Yet many economists go easy on the mathematics of that issue. Conversely, few mathematicians elaborate on the economics of the context. Thereby
Sjur Didrik Flåm, Jan-J. Rückmann
openaire   +3 more sources

New Constraint Qualifications with Second-Order Properties in Nonlinear Optimization

open access: greenJournal of Optimization Theory and Applications, 2019
Gabriel Haeser   +2 more
exaly   +2 more sources

Semidefinite Multiobjective Mathematical Programming Problems with Vanishing Constraints Using Convexificators

open access: yesFractal and Fractional, 2021
In this paper, we establish Fritz John stationary conditions for nonsmooth, nonlinear, semidefinite, multiobjective programs with vanishing constraints in terms of convexificator and introduce generalized Cottle type and generalized Guignard type ...
Kin Keung Lai   +4 more
doaj   +1 more source

On duality for nonsmooth Lipschitz optimization problems [PDF]

open access: yesYugoslav Journal of Operations Research, 2009
We present some duality theorems for a non-smooth Lipschitz vector optimization problem. Under generalized invexity assumptions on the functions the duality theorems do not require constraint qualifications.
Preda Vasile   +2 more
doaj   +1 more source

Optimality Conditions, Qualifications and Approximation Method for a Class of Non-Lipschitz Mathematical Programs with Switching Constraints

open access: yesMathematics, 2021
In this paper, we consider a class of mathematical programs with switching constraints (MPSCs) where the objective involves a non-Lipschitz term. Due to the non-Lipschitz continuity of the objective function, the existing constraint qualifications for ...
Jinman Lv, Zhenhua Peng, Zhongping Wan
doaj   +1 more source

Min–sup-type zero duality gap properties for DC composite optimization problem

open access: yesJournal of Inequalities and Applications, 2019
In this paper, we present min–sup-type zero duality gap properties for DC composite optimization problem with conic constraints. Using properties of the subdifferentials of involved functions, we introduce some new constraint qualifications.
Li Ping Tian, Dong Hui Fang
doaj   +1 more source

On implicit variables in optimization theory [PDF]

open access: yesJournal of Nonsmooth Analysis and Optimization, 2021
Implicit variables of a mathematical program are variables which do not need to be optimized but are used to model feasibility conditions. They frequently appear in several different problem classes of optimization theory comprising bilevel programming ...
Matúš Benko, Patrick Mehlitz
doaj   +1 more source

Inertial Extragradient Methods for Solving Split Equilibrium Problems

open access: yesMathematics, 2021
This paper presents two inertial extragradient algorithms for finding a solution of split pseudomonotone equilibrium problems in the setting of real Hilbert spaces. The weak and strong convergence theorems of the introduced algorithms are presented under
Suthep Suantai   +2 more
doaj   +1 more source

Strong and Total Lagrange Dualities for Quasiconvex Programming

open access: yesJournal of Applied Mathematics, 2014
We consider the strong and total Lagrange dualities for infinite quasiconvex optimization problems. By using the epigraphs of the z-quasi-conjugates and the Greenberg-Pierskalla subdifferential of these functions, we introduce some new constraint ...
Donghui Fang, XianFa Luo, Xianyun Wang
doaj   +1 more source

On an exact penality result and new constraint qualifications for mathematical programs with vanishing constraints [PDF]

open access: yesYugoslav Journal of Operations Research, 2019
In this paper, we considered the mathematical programs with vanishing constraints or MPVC. We proved that an MPVC-tailored penalty function, introduced in [5], is still exact under a very weak and new constraint qualification.
Nath Triloki, Khare Abeka
doaj   +1 more source

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