scholarly journals Mixed type symmetric and self duality for multiobjective variational problems with support functions

2013 ◽  
Vol 23 (3) ◽  
pp. 387-417
Author(s):  
I. Husain ◽  
Rumana Mattoo
Keyword(s):  
Mixed Type ◽  
Variational Problems ◽  
Kernel Functions ◽  
Boundary Values ◽  
Natural Boundary ◽  
Duality Theorems ◽  
Support Functions ◽  
Self Duality ◽  
Multiobjective Nonlinear Programming ◽  
Multiobjective Variational Problems

In this paper, a pair of mixed type symmetric dual multiobjective variational problems containing support functions is formulated. This mixed formulation unifies two existing pairs Wolfe and Mond-Weir type symmetric dual multiobjective variational problems containing support functions. For this pair of mixed type nondifferentiable multiobjective variational problems, various duality theorems are established under convexity-concavity and pseudoconvexity-pseudoconcavity of certain combination of functionals appearing in the formulation. A self duality theorem under additional assumptions on the kernel functions that occur in the problems is validated. A pair of mixed type nondifferentiable multiobjective variational problem with natural boundary values is also formulated to investigate various duality theorems. It is also pointed that our duality theorems can be viewed as dynamic generalizations of the corresponding (static) symmetric and self duality of multiobjective nonlinear programming with support functions.

scholarly journals Mixed Type Nondifferentiable Higher-Order Symmetric Duality over Cones

Symmetry ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 274 ◽  
Author(s):  
Izhar Ahmad ◽  
Khushboo Verma ◽  
Suliman Al-Homidan
Keyword(s):  
Mixed Type ◽  
Higher Order ◽  
Dual Model ◽  
Duality Theorems ◽  
Symmetric Duality ◽  
Converse Duality ◽  
Self Duality ◽  
Pseudoconvex Functions

A new mixed type nondifferentiable higher-order symmetric dual programs over cones is formulated. As of now, in the literature, either Wolfe-type or Mond–Weir-type nondifferentiable symmetric duals have been studied. However, we present a unified dual model and discuss weak, strong, and converse duality theorems for such programs under higher-order F - convexity/higher-order F - pseudoconvexity. Self-duality is also discussed. Our dual programs and results generalize some dual formulations and results appeared in the literature. Two non-trivial examples are given to show the uniqueness of higher-order F - convex/higher-order F - pseudoconvex functions and existence of higher-order symmetric dual programs.

scholarly journals Natural Boundary Conditions in Geometric Calculus of Variations

2015 ◽  
Vol 65 (6) ◽  
Author(s):  
Giovanni Moreno ◽  
Monika Ewa Stypa
Keyword(s):  
Boundary Conditions ◽  
Variational Problems ◽  
Boundary Values ◽  
Natural Boundary ◽  
Natural Behavior ◽  
Geometric Calculus ◽  
Jet Bundles ◽  
Independent Variables ◽  
Natural Boundary Conditions ◽  
Dimensional Domain

AbstractIn this paper we obtain natural boundary conditions for a large class of variational problems with free boundary values. In comparison with the already existing examples, our framework displays complete freedom concerning the topology of Y - the manifold of dependent and independent variables underlying a given problem - as well as the order of its Lagrangian. Our result follows from the natural behavior, under boundary-friendly transformations, of an operator, similar to the Euler map, constructed in the context of relative horizontal forms on jet bundles (or Grassmann fibrations) over Y . Explicit examples of natural boundary conditions are obtained when Y is an (n + 1)-dimensional domain in ℝ

scholarly journals Duality for Multitime Multiobjective Ratio Variational Problems on First Order Jet Bundle

2012 ◽  
Vol 2012 ◽  
pp. 1-18
Author(s):  
Mihai Postolache
Keyword(s):  
Variational Problems ◽  
Efficient Solutions ◽  
Integral Type ◽  
Duality Theorems ◽  
Jet Bundle ◽  
New Class ◽  
Special Cases ◽  
Multiobjective Variational Problems ◽  
Curvilinear Integral ◽  
Primal And Dual

We consider a new class of multitime multiobjective variational problems of minimizing a vector of quotients of functionals of curvilinear integral type. Based on the efficiency conditions for multitime multiobjective ratio variational problems, we introduce a ratio dual of generalized Mond-Weir-Zalmai type, and under some assumptions of generalized convexity, duality theorems are stated. We prove our weak duality theorem for efficient solutions, showing that the value of the objective function of the primal cannot exceed the value of the dual. Direct and converse duality theorems are stated, underlying the connections between the values of the objective functions of the primal and dual programs. As special cases, duality results of Mond-Weir-Zalmai type for a multitime multiobjective variational problem are obtained. This work further develops our studies in (Pitea and Postolache (2011)).

scholarly journals Duality for a class of second order symmetric nondifferentiable fractional variational problems

2020 ◽  
Vol 30 (2) ◽  
pp. 121-136
Author(s):  
Ashish Prasad ◽  
Anant Singh ◽  
Sony Khatri
Keyword(s):  
Variational Problems ◽  
Second Order ◽  
Static Case ◽  
Time Dependency ◽  
Duality Theorems ◽  
Support Functions ◽  
Converse Duality ◽  
Cone Constraints ◽  
Fractional Variational Problems ◽  
Convexity Assumptions

The present work frames a pair of symmetric dual problems for second order nondifferentiable fractional variational problems over cone constraints with the help of support functions. Weak, strong and converse duality theorems are derived under second order F-convexity assumptions. By removing time dependency, static case of the problem is obtained. Suitable numerical example is constructed.

scholarly journals Duality for multiobjective variational problems under second-order (Ф,ρ)-invexity

Filomat ◽  
2021 ◽  
Vol 35 (2) ◽  
pp. 605-615
Author(s):  
Vivek Singh ◽  
I. Ahmad ◽  
S.K. Gupta ◽  
S. Al-Homidan
Keyword(s):  
Variational Problem ◽  
Dual Problem ◽  
Variational Problems ◽  
Efficient Solutions ◽  
Second Order ◽  
Duality Theorems ◽  
Primal Problem ◽  
Duality Relations ◽  
Multiobjective Variational Problems ◽  
Invex Function

The purpose of this article is to introduce the concept of second order (?,?)-invex function for continuous case and apply it to discuss the duality relations for a class of multiobjective variational problem. Weak, strong and strict duality theorems are obtained in order to relate efficient solutions of the primal problem and its second order Mond-Weir type multiobjective variational dual problem using aforesaid assumption. A non-trivial example is also exemplified to show the presence of the proposed class of a function.

scholarly journals Second-order symmetric duality in multiobjective variational problems

2019 ◽  
Vol 29 (3) ◽  
pp. 295-308
Author(s):  
Geeta Sachdev ◽  
Khushboo Verma ◽  
T.R. Gulati
Keyword(s):  
Variational Problems ◽  
Second Order ◽  
Static Case ◽  
Duality Theorems ◽  
Symmetric Duality ◽  
Converse Duality ◽  
Multiobjective Variational Problems ◽  
Second Order Symmetric Duality

In this work, we introduce a pair of multiobjective second-order symmetric dual variational problems. Weak, strong, and converse duality theorems for this pair are established under the assumption of ?-bonvexity/?-pseudobonvexity. At the end, the static case of our problems has also been discussed.

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