Results 71 to 80 of about 347 (90)

Introducing Fully Up-Semigroups

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2018
In this paper, we introduce some new classes of algebras related to UP-algebras and semigroups, called a left UP-semigroup, a right UP-semigroup, a fully UP-semigroup, a left-left UP-semigroup, a right-left UP-semigroup, a left-right UP-semigroup, a ...
Iampan Aiyared
doaj   +1 more source

Convergences in perfect BL-algebras [PDF]

open access: yes, 2007
The aim of the paper is to investigate some concepts of convergence in the class of perfect BL-algebras. Similarity convergence was developed by G. Georgescu and A.
Ciungu, L.C.
core   +1 more source

Residuated Structures Derived from Commutative Idempotent Semirings

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2019
Since the reduct of every residuated lattice is a semiring, we can ask under what condition a semiring can be converted into a residuated lattice. It turns out that this is possible if the semiring in question is commutative, idempotent, G-simple and ...
Chajda Ivan, Länger Helmut
doaj   +1 more source

Congruences of Sheffer stroke basic algebras

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2020
In this paper, congruences and (order, prime and compatible) filters are introduced in Sheffer stroke basic algebras. They are interrelated with each other.
Senturk Ibrahim   +2 more
doaj   +1 more source

An Injective Pseudo-BCI Algebra is Trivial

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2019
Injective pseudo-BCI algebras are studied. There is shown that the only injective pseudo-BCI algebra is the trivial one.
Dymek Grzegorz
doaj   +1 more source

A topology related to implication and upsets on a bounded BCK-algebra

open access: yesOpen Mathematics
The main purpose of this article is to investigate a topology based on implication and upsets in a bounded BCK-algebra. First, we introduce a special kind of sets associated with implication and upsets in a bounded BCK-algebra, and some basic properties ...
Wu Supeng, Liu Hui, Yang Jiang
doaj   +1 more source

The logic induced by effect algebras. [PDF]

open access: yesSoft comput, 2020
Chajda I, Halaš R, Länger H.
europepmc   +1 more source

Topological Up-Algebras

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2019
In this paper, we introduce the notion of topological UP-algebras and several types of subsets of topological UP-algebras, and prove the generalization of these subsets.
Satirad Akarachai, Iampan Aiyared
doaj   +1 more source

© Hindawi Publishing Corp. ON THE CLASS OF QS-ALGEBRAS [PDF]

open access: yes
We consider some fundamental properties of QS-algebras and show that (1) the theory of QS-algebras is logically equivalent to the theory of Abelian groups, that is, each theorem of QS-algebras is provable in the theory of Abelian groups, and conversely ...
Michiro Kondo
core   +2 more sources

Some properties of epimorphisms of Hilbert algebras

open access: yesOpen Mathematics, 2010
Buşneag Dumitru, Ghiţă Mircea
doaj   +1 more source

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