Ma, X., Zhan, J., Jun, Y. (2009). Some types of $(\in,\ivq)$-interval-valued fuzzy
ideals of BCI algebras. Iranian Journal of Fuzzy Systems, 6(3), 53-63. doi: 10.22111/ijfs.2009.200

Xueling. Ma; Jianming. Zhan; Young Bea Jun. "Some types of $(\in,\ivq)$-interval-valued fuzzy
ideals of BCI algebras". Iranian Journal of Fuzzy Systems, 6, 3, 2009, 53-63. doi: 10.22111/ijfs.2009.200

Ma, X., Zhan, J., Jun, Y. (2009). 'Some types of $(\in,\ivq)$-interval-valued fuzzy
ideals of BCI algebras', Iranian Journal of Fuzzy Systems, 6(3), pp. 53-63. doi: 10.22111/ijfs.2009.200

Ma, X., Zhan, J., Jun, Y. Some types of $(\in,\ivq)$-interval-valued fuzzy
ideals of BCI algebras. Iranian Journal of Fuzzy Systems, 2009; 6(3): 53-63. doi: 10.22111/ijfs.2009.200

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

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

^{2}Department of Mathematics Education, Gyeongsang National University, Chinju 660-701, Korea

Abstract

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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