• 제목/요약/키워드: ${\delta}$-characteristic fuzzy set

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HESITANT FUZZY BI-IDEALS IN SEMIGROUPS

  • JUN, YOUNG BAE;LEE, KYOUNG JA;SONG, SEOK-ZUN
    • 대한수학회논문집
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    • 제30권3호
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    • pp.143-154
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    • 2015
  • Characterizations of hesitant fuzzy left (right) ideals are considered. The notion of hesitant fuzzy (generalized) bi-ideals is introduced, and related properties are investigated. Relations between hesitant fuzzy generalized bi-ideals and hesitant fuzzy semigroups are discussed, and characterizations of (hesitant fuzzy) generalized bi-ideals and hesitant fuzzy bi-ideals are considered. Given a hesitant fuzzy set $\mathcal{H}$ on a semigroup S, hesitant fuzzy (generalized) bi-ideals generated by $\mathcal{H}$ are established.