Czechoslovak Mathematical Journal, Vol. 48, No. 4, pp. 669-675, 1998

On L-fuzzy Ideals in Semirings I

Young Bae Jun, J. Neggers, Hee Sik Kim

Young Bae Jun, Dept. of Mathematics Education, Gyeongsang National University, Chinju, 660-701, Korea, email:; J.  Neggers Dept. of Mathematics, University of Alabama, Tuscaloosa, AL 35487-0350, U.S.A., email:; Hee Sik Kim, Dept. of Mathematics Education, Chungbuk National University, Chongju, 360-763, Korea, email:

Abstract: In this paper we extend the concept of an $L$-fuzzy (characteristic) left (resp. right) ideal of a ring to a semiring $R$, and we show that each level left (resp. right) ideal of an $L$-fuzzy left (resp. right) ideal $\mu$ of $R$ is characteristic iff $\mu$ is $L$-fuzzy characteristic.

Keywords: semiring, $L$-fuzzy (characteristic) ideal, level ideal

Classification (MSC 1991): 16Y60, 04A72

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