Optimality Conditions and Duality for Multiobjective Fractional Bilevel Optimization Problems

Fuente: arXiv
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Main Authors: Lara, Felipe, Pandey, Rishabh, Singh, Vinay
Format: Preprint
Published: 2025
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author Lara, Felipe
Pandey, Rishabh
Singh, Vinay
author_facet Lara, Felipe
Pandey, Rishabh
Singh, Vinay
contents This paper studies a multiobjective bilevel optimization problem where each objective is a fractional function. By reformulating the problem into a single-level one, we establish refined necessary and sufficient optimality conditions. These results are derived using ${\partial}_D$-nonsmooth Abadie-type constraint qualifications and generalized convexity concepts (quasiconvexity and pseudoconvexity) based on directional convexificators. We also prove weak and strong duality theorems for a Mond-Weir dual problem formulated with directional convexificators. Finally, several examples are provided to illustrate the advantages of our approach.
format Preprint
id arxiv_https___arxiv_org_abs_2511_18176
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Optimality Conditions and Duality for Multiobjective Fractional Bilevel Optimization Problems
Lara, Felipe
Pandey, Rishabh
Singh, Vinay
Optimization and Control
90C26, 90C32, 90C46
This paper studies a multiobjective bilevel optimization problem where each objective is a fractional function. By reformulating the problem into a single-level one, we establish refined necessary and sufficient optimality conditions. These results are derived using ${\partial}_D$-nonsmooth Abadie-type constraint qualifications and generalized convexity concepts (quasiconvexity and pseudoconvexity) based on directional convexificators. We also prove weak and strong duality theorems for a Mond-Weir dual problem formulated with directional convexificators. Finally, several examples are provided to illustrate the advantages of our approach.
title Optimality Conditions and Duality for Multiobjective Fractional Bilevel Optimization Problems
topic Optimization and Control
90C26, 90C32, 90C46
url https://arxiv.org/abs/2511.18176