Results 1 to 10 of about 382 (63)

A characterization of a ∼ admissible congruence on a weakly type B semigroup

open access: yesOpen Mathematics, 2023
In this article, the notions of ∼ \sim admissible congruences and ∼ \sim normal congruences on a weakly type B semigroup are characterized and the relationship between ∼ \sim admissible congruences and ∼ \sim normal congruences is investigated.
Li Chunhua   +3 more
doaj   +1 more source

On Sheffer Stroke Be-Algebras

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2022
In this paper we introduce Sheffer stroke BE-algebras (briefly, SBE-algebras) and investigate a relationship between SBE-algebras and BE-algebras. By presenting a SBE-filter, an upper set and a SBE-subalgebra on a SBE-algebra, it is shown that any SBE ...
Katican Tugce   +2 more
doaj   +1 more source

From ∨e-Semigroups to Hypersemigroups

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2021
A poe-semigroup is a semigroup S at the same time an ordered set having a greatest element “e” in which the multiplication is compatible with the ordering.
Kehayopulu Niovi
doaj   +1 more source

Topology on the Spaces Of Orderings of Groups [PDF]

open access: yes, 2001
A natural topology on the space of left orderings of an arbitrary semi‐group is introduced here. This space is proved to be compact, and for free abelian groups it is shown to be homeomorphic to the Cantor set.
Adam S. Sikora
semanticscholar   +1 more source

Ehrhart theory of polytopes and Seiberg–Witten invariants of plumbed 3–manifolds [PDF]

open access: yes, 2012
Let M be a rational homology sphere plumbed 3‐manifold associated with a connected negative-definite plumbing graph. We show that its Seiberg‐Witten invariants equal certain coefficients of an equivariant multivariable Ehrhart polynomial.
A. N'emethi, Tam'as L'aszl'o
semanticscholar   +1 more source

On pomonoid of partial transformations of a poset

open access: yesOpen Mathematics, 2023
The main objective of this article is to study the ordered partial transformations PO(X){\mathcal{PO}}\left(X) of a poset XX. The findings show that the set of all partial transformations of a poset with a pointwise order is not necessarily a pomonoid ...
Al Subaiei Bana
doaj   +1 more source

On Sheffer Stroke Up-Algebras

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2021
In this paper, we introduce Sheffer Stroke UP-algebra (in short, SUP-algebra) and study its properties. We demonstrate that the Cartesian product of two SUP-algebras is a SUP-algebra.
Oner Tahsin   +2 more
doaj   +1 more source

A study on strongly convex hyper S-subposets in hyper S-posets

open access: yesOpen Mathematics, 2020
In this paper, we study various strongly convex hyper S-subposets of hyper S-posets in detail. To begin with, we consider the decomposition of hyper S-posets.
Tang Jian, Xie Xiang-Yun, Davvaz Bijan
doaj   +1 more source

Almost factorizable weakly type B semigroups

open access: yesOpen Mathematics, 2021
The definition of an almost left factorizable weakly type B semigroup is introduced by using the notion of a left factorizable weakly type B monoids, and some properties and characterizations on such semigroup are obtained.
Li Chunhua   +3 more
doaj   +1 more source

On the coset category of a skew lattice [PDF]

open access: yes, 2014
Skew lattices are non-commutative generalizations of lattices. The coset structure decomposition is an original approach to the study of these algebras describing the relation between its rectangular classes.
Costa, Joao Pita
core   +2 more sources

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