Yunqiang Yin - State Key Laboratory, Breeding Base of Nuclear Resources and Environment, East China Institute of Technology, Nanchang, ۳۳۰۰۱۳, China
Young Bae Jun - Department of Mathematics Education (and RINS), Gyeongsang Na- tional University, Chinju ۶۶۰-۷۰۱, Korea
Zhihui Yang - School of Mathematics and Information Sciences, East China Institute of Technology, Fuzhou, Jiangxi ۳۴۴۰۰۰, China

This paper consider the   general  forms of (alpha,beta)-fuzzyleft ideals (right ideals, bi-ideals, interior ideals) of an orderedsemigroup, wherealpha,betain{in_{gamma},q_{delta},in_{gamma}wedgeq_{delta}, in_{gamma}vee q_{delta}} and alphaneqin_{gamma}wedge q_{delta}. Special attention is paid to(in_{gamma},ivq)-left ideals (right ideals, bi-ideals, interiorideals) and some related  properties are investigated. Thecharacterization of regular ordered semigroups  in terms of(in_{gamma},ivq)-fuzzy left (right) ideals,(in_{gamma},ivq)-fuzzy bi-ideals and(in_{gamma},ivq)-fuzzy interior ideals is also investigated.

Ordered semigroups, (alpha, beta)-fuzzy left (right) ideals, (in_{gamma}, ivq)-fuzzy bi-ideals, ivq)-fuzzy interior ideals