Further remarks on systems of interlocking exact sequences.
Fuzzy congruences on groups and rings.
Fuzzy ideals extensions of ordered semigroups.
Fuzzy ideals of ordered semigroups with fuzzy orderings
The purpose of this paper is to introduce the notions of ∈, ∈ ∨qk-fuzzy ideals of a fuzzy ordered semigroup with the ordering being a fuzzy relation. Several characterizations of ∈, ∈ ∨qk-fuzzy left (resp. right) ideals and ∈, ∈ ∨qk-fuzzy interior ideals are derived. The lattice structures of all ∈, ∈ ∨qk-fuzzy (interior) ideals on such fuzzy ordered semigroup are studied and some methods are given to construct an ∈, ∈ ∨qk-fuzzy (interior) ideals from an arbitrary fuzzy subset. Finally, the characterizations...
Fuzzy neighborhood structures on partially ordered groups.
Fuzzy positive implicative ordered filters of implicative semigroups.
Fuzzy sets and non-complete 1-hypergroups.
F-квазигруппы с идемпотентными элементами