• Korean Journal of Mathematics
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• 제14권2호
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• pp.203-215
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• 2006

In this note the notion of interval-valued fuzzy BG-algebras (briefly, i-v fuzzy BG-algebras), the level and strong level BG-subalgebra is introduced. Then we state and prove some theorems which determine the relationship between these notions and BG-subalgebras. The images and inverse images of i-v fuzzy BG-subalgebras are defined, and how the homomorphic images and inverse images of i-v fuzzy BG-subalgebra becomes i-v fuzzy BG-algebras are studied.

• 대한수학회논문집
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• 제19권2호
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• pp.243-251
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• 2004

In this paper, we classify the subalgebras by their family of level subalgebras in BG-algebras.