Search

In this paper, we define the concept of generalized cubic subsemigroups (ideals) of a semigroup and investigate some of its related properties. In particular, we introduce the concept of $(\in _{(\widetilde{\gamma }_{1},\gamma _{2}) },\in _{(\widetilde{\gamma}_{1},\gamma _{2}) }\vee q_{(\widetilde{\delta }_{1},\delta _{2})})$-cubic ideal, $(\in _{( \widetilde{\gamma }_{1},\gamma _{2}) },\in _{(\widetilde{\gamma }_{1},\gamma _{2}) }\vee q_{(\widetilde{\delta }_{1},\delta _{2}) })$-cubic quasi-ideal, $(\in _{( \widetilde{\gamma }_{1},\gamma _{2}) },\in _{(\widetilde{\gamma }_{1},\gamma _{2}) }\vee q_{( \widetilde{\delta }_{1},\delta _{2})})$-cubic bi-ideal and $(\in _{( \widetilde{\gamma }_{1},\gamma _{2})},\in _{(\widetilde{\gamma } _{1},\gamma _{2})}\vee q_{(\widetilde{\delta }_{1},\delta _{2})})$-cubic prime/semiprime ideal of a semigroup. [ABSTRACT FROM AUTHOR]

The notions of int-soft semigroups and int-soft left (resp., right) ideals in semigroups are studied in the paper by Song et al. (2014). In this paper, further properties and characterizations of int-soft left (right) ideals are studied, and the notion of int-soft (generalized) bi-ideals is introduced. Relations between int-soft generalized bi-ideals and int-soft semigroups are discussed, and characterizations of (int-soft) generalized bi-ideals and int-soft bi-ideals are considered. Given a soft set (α;S) over U, int-soft (generalized) bi-ideals generated by (α;S) are established. [ABSTRACT FROM AUTHOR]

In this article, we first introduce the concept of quasi-coincidence of an interval valued fuzzy point with an interval valued fuzzy subset. This concept is a generalization of the concept of quasi-coincidence of a fuzzy point within a fuzzy subset. By using this new idea, we introduce the concept of an interval valued (α, β)-fuzzy bi-ideals in ordered semigroups. Which is a generalization of the idea of an (α, β)-fuzzy bi-ideals in ordered semigroups. Some interesting results of the algebraic ordered semigroups in terms of interval valued (α, β)-fuzzy bi-ideals are given. By using interval valued ($ε, ε $\vee$ q)-fuzzy bi-ideals some interesting results are obtained. [ABSTRACT FROM AUTHOR]

In the paper [B. Davvaz and A. Khan, Generalized fuzzy filters in ordered semigroups, IJST (2012) Vol. 36, A1: 77-86], Davvaz and Khan discussed the notion of (∈, ∈ ∨ q)-fuzzy left (right) filters as a generalization of the notion of fuzzy left (right) filters of ordered semigroups. In this article, we try to obtain a more general form than (∈, ∈ ∨ q)-fuzzy left (right) filters in ordered semigroups. The notion of an (∈, ∈ ∨ qk)-fuzzy left (right) filter is introduced, and several properties are investigated. Characterizations of an (∈, ∈ ∨ qk)-fuzzy left (right) filter are established. A condition for an (∈, ∈ ∨ qk)-fuzzy left (right) filter to be a fuzzy left (right) filter is provided. Using implication operators and the notion of implication-based fuzzy left (resp. right) filters, characterizations of a fuzzy left (resp. right) filter and an (∈, ∈ ∨ qk)-fuzzy left (resp. right) filter are considered. [ABSTRACT FROM AUTHOR]

The notions of hybrid subsemigroups and hybrid left (resp., right) ideals in semigroups are introduced, and several properties are investigated. Using these notions, characterizations of subsemigroups and left (resp., right) ideals are discussed. The concept of hybrid product is also introduced, and characterizations of hybrid subsemigroups and hybrid left (resp., right) ideals are considered by using the notion of hybrid product. Relations between hybrid intersection and hybrid product are displayed. [ABSTRACT FROM AUTHOR]