Communications of the
Korean Mathematical Society
CKMS

ISSN(Print) 1225-1763 ISSN(Online) 2234-3024

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Commun. Korean Math. Soc. 2009; 24(3): 341-351

Printed September 1, 2009

https://doi.org/10.4134/CKMS.2009.24.3.341

Copyright © The Korean Mathematical Society.

Rough prime ideals and rough fuzzy prime ideals in Gamma-semigroups

Ronnason Chinram

Prince of Songkla University

Abstract

The notion of rough sets was introduced by Z. Pawlak in the year 1982. The notion of a $\Gamma$-semigroup was introduced by M. K. Sen in the year 1981. In 2003, Y. B. Jun studied the roughness of sub$\Gamma$-semigroups, ideals and bi-ideals in $\Gamma$-semigroups. In this paper, we study rough prime ideals and rough fuzzy prime ideals in $\Gamma$-semigroups.

Keywords: congruences, $\Gamma$-semigroups, quotient $\Gamma$-semigroups, prime ideals, $\Theta$-lower rough prime ideals, $\Theta$-upper rough prime ideals

MSC numbers: Primary 20N25, 20M99, 20M12