• Journal of the Chungcheong Mathematical Society
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• v.20 no.3
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• pp.279-286
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• 2007

Using t-norm T and s-norm S, we introduce the notion of intuitionistic (T, S)-normed fuzzy subalgebra in BCK/BCI-algebra, and some related properties are investigated.

• Journal of the Chungcheong Mathematical Society
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• v.22 no.3
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• pp.399-408
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• 2009

A bipolar fuzzy translation and a bipolar fuzzy S-extension of a bipolar fuzzy subalgebra in a BCK/BCI-algebra are introduced, and related properties are investigated.

• Journal of applied mathematics & informatics
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• v.8 no.1
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• pp.261-272
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• 2001

The intuitionistic fuzzification of a subalgebra in a BCK/BCI-algebra is considered, and related results are investigated. The notion of equivalence relations on the family of all intuitionistic fuzzy subalgebras of a BCK/BCI-algebra is introduced, and then some properties are discussed.

• Journal of applied mathematics & informatics
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• v.27 no.3_4
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• pp.795-807
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• 2009

The concepts of fuzzy pseudo ideals (resp. fuzzy pseudo p-ideals, associative fuzzy pseudo ideals, fuzzy pseudo q-ideals and fuzzy pseudo a-ideals) in a pseudo BCI-algebra are introduced, and related properties are investigated. Conditions for a fuzzy pseudo ideal to be a fuzzy pseudo p-ideal (resp. fuzzy pseudo q-ideal) are provided. A characterization and properties of an associative fuzzy pseudo ideal are given.

• Journal of the Chungcheong Mathematical Society
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• v.26 no.1
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• pp.175-179
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• 2013

In this note, we show that every linear BCI-algebra (X; *, $e$), $e{\in}X$, has of the form $x*y=x-y+e$ where $x,\;y{\in}X$, where X is a field with $\left|X\right|{\geq}3$.

• Honam Mathematical Journal
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• v.16 no.1
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• pp.71-77
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• 1994

• East Asian mathematical journal
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• v.8 no.2
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• pp.211-216
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• 1992

• Communications of the Korean Mathematical Society
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• v.9 no.1
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• pp.19-25
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• 1994

• Communications of the Korean Mathematical Society
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• v.8 no.1
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• pp.103-110
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• 1993

• Communications of the Korean Mathematical Society
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• v.8 no.1
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• pp.33-37
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• 1993