Some types of $(\in,\ivq)$-interval-valued fuzzy ideals of BCI algebras

نویسندگان
Ma, Xueling. ID 1
Zhan, Jianming. ID 2
Jun, Young Bea ID 3

1 Department of Mathematics, Hubei Institute for Nationalities, Enshi, Hubei Province,445000, P. R. China

2 Department of Mathematics, Hubei Institute for Nationalities, Enshi, Hubei Province,445000, P. R. China

3 Department of Mathematics Education, Gyeongsang National University, Chinju 660-701, Korea

doi
10.22111/ijfs.2009.200
چکیده

In this paper, we introduce  the notions of   interval-valued and $(\in,\ivq)$-interval-valued fuzzy ($p$-,$q$- and $a$-) ideals    of   BCI algebras   and investigate some of their properties.   We then derive characterization theorems for these generalized interval-valued fuzzy ideals  and discuss their relationship.

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