Journal of the Operations Research Society of China ›› 2025, Vol. 13 ›› Issue (1): 210-226.doi: 10.1007/s40305-023-00513-0

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Applying Convexificators in Nonsmooth Multiobjective Semi-infinite Fractional Interval-Valued Optimization

Nazih Abderrazzak Gadhi, Aissam Ichatouhane   

  1. LAMA, Department of Mathematics, FSDM, Sidi Mohamed Ben Abdellah University, Fez, Morocco
  • Received:2022-10-06 Revised:2023-08-26 Online:2025-03-30 Published:2025-03-20
  • Contact: Aissam Ichatouhane,Nazih Abderrazzak Gadhi E-mail:ichatouhane22@gmail.com;abderrazzak.gadhinazih@usmba.ac.ma

Abstract: In this work, we explore a nonsmooth semi-infinite multiobjective fractional interval-valued optimization problem. Using an adequate constraint qualification, we establish necessary optimality conditions in terms of Karush-Kuhn-Tucker multipliers and upper semiregular convexificators. We do not assume that the interval-valued objective function is smooth or that it is convex. There are examples highlighting both our results and the limits of certain past studies.

Key words: Upper semiregular convexificators, Constraint qualifications, Interval-valued functions, Necessary optimality conditions, Multiobjective optimization

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