Fentaw, Getaye; Alemayehu, (PhD) Getinet; Demie, (PhD) Seleshi
(Haramaya university, 2020-01)
In this thesis, a fuzzy goal programing (FGP) approach has been used for solving concave multi-level multi-objective quadratic programming problem (ML-MOQPP) when a constraint is a rough set. To avoid the complexity of the ...