TY - JOUR JF - IJMSI JO - IJMSI VL - 4 IS - 1 PY - 2009 Y1 - 2009/5/01 TI - Characterizing Ordered Bi-Ideals in Ordered Γ-Semigroups TT - N2 - The notion of a &Gamma-semigroup was introduced by Sen [8] in 1981. We can see that any semigroup can be considered as a &Gamma-semigroup. The aim of this article is to study the concept of (0-)minimal and max- imal ordered bi-ideals in ordered &Gamma-semigroups, and give some charac- terizations of (0-)minimal and maximal ordered bi-ideals in ordered &Gamma- semigroups analogous to the characterizations of (0-)minimal and maxi- mal ordered bi-ideals in ordered semigroups considered by Iampan [5]. SP - 17 EP - 25 AU - A. Iampan, AD - UR - http://ijmsi.ir/article-1-65-en.html DO - 10.7508/ijmsi.2009.01.002 ER -