N - fuzzy quasi - ideals in ordered semigroups
نویسندگان
چکیده
In this paper, we introduce the concept of N -fuzzy quasi-ideals in ordered semigroups and investigate the basic theorem of quasi-ideals of ordered semigroups in terms of N -fuzzy quasi-ideals. We characterize left (resp. right) regular and completely regular ordered semigroups in terms of N -fuzzy quasi-ideals. We de ne semiprime N fuzzy quasi-ideals and characterize completely regular ordered semigroups in terms of semiprime N -fuzzy quasi-ideals. We provide characterizations of some semilattices of left and right simple semigroups in terms of N -fuzzy quasi-ideals.
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