Journal of the Operations Research Society of China ›› 2023, Vol. 11 ›› Issue (3): 505-527.doi: 10.1007/s40305-021-00381-6

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Sufficiency and Duality for Nonsmooth Interval-Valued Optimization Problems via Generalized Invex-Infine Functions

Izhar Ahmad1, Krishna Kummari2, S. Al-Homidan1   

  1. 1. Department of Mathematics and Statistics, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia;
    2. Department of Mathematics, School of Science, GITAM, Hyderabad Campus, Hyderabad, 502329, India
  • Received:2020-04-08 Revised:2021-10-30 Online:2023-09-30 Published:2023-09-07
  • Contact: Krishna Kummari, Izhar Ahmad, S. Al-Homidan E-mail:krishna.maths@gmail.com;drizhar@kfupm.edu.sa;homidan@kfupm.edu.sa

Abstract: In this paper, a new concept of generalized-affineness type of functions is introduced. This class of functions is more general than some of the corresponding ones discussed in Chuong (Nonlinear Anal Theory Methods Appl 75:5044–5052, 2018), Sach et al. (J Global Optim 27:51–81, 2003) and Nobakhtian (Comput Math Appl 51:1385–1394, 2006). These concepts are used to discuss the sufficient optimality conditions for the interval-valued programming problem in terms of the limiting/Mordukhovich subdifferential of locally Lipschitz functions. Furthermore, two types of dual problems, namely Mond–Weir type and mixed type duals are formulated for an interval-valued programming problem and usual duality theorems are derived. Our results improve and generalize the results appeared in Kummari and Ahmad (UPB Sci Bull Ser A 82(1):45–54, 2020).

Key words: Mordukhovich subdifferential, Locally Lipschitz functions, Generalized invex-infine function, Interval-valued programming, LU-optimal, Constraint qualifications, Duality

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