Results 11 to 20 of about 1,009,048 (159)

Beyond Regular Semigroups [PDF]

open access: yes, 2012
The topic of this thesis is the class of weakly U-abundant semigroups. This class is very wide, containing inverse, orthodox, regular, ample, adequate, quasi-adequate, concordant, abundant, restriction, Ehresmann and weakly abundant semigroups.
Wang, Yanhui
core   +6 more sources

Automatic presentations for semigroups [PDF]

open access: yes, 2009
Special Issue: 2nd International Conference on Language and Automata Theory and Applications (LATA 2008)This paper applies the concept of FA-presentable structures to semigroups.
Oliver, Graham   +4 more
core   +2 more sources

On Vn-semigroups

open access: yesOpen Mathematics, 2015
In this paper, we give some new characterizations of orthodox semigroups in terms of the set of inverses of idempotents. As a generalization, a new class of regular semigroups, namely Vn-semigroups, is introduced.
Gu Ze, Tang Xilin
doaj   +1 more source

Soft ideals of soft ternary semigroups

open access: yesHeliyon, 2021
In this paper, we introduce the notions of certain classes of soft ideals in soft ternary semigroups and study some inter-relations between different types of soft ideals in a soft ternary semigroup.
S. Kar, I. Dutta
doaj   +1 more source

Neutrosophic ℵ −bi-ideals in semigroups [PDF]

open access: yesNeutrosophic Sets and Systems, 2020
In this paper, we introduce the notion of neutrosophic ℵ-bi-ideal for a semigroup. We infer different semigroups using neutrosophic ℵ -bi-ideal structures.
K. Porselvi   +3 more
doaj   +1 more source

On 𝓠-regular semigroups

open access: yesOpen Mathematics, 2018
In this paper, we give some characterizations of 𝓠-regular semigroups and show that the class of 𝓠-regular semigroups is closed under the direct product and homomorphic images.
Feng Xinyang
doaj   +1 more source

New Generalizations of sup-Hesitant Fuzzy Ideals of Semigroups

open access: yesInternational Journal of Analysis and Applications, 2022
As general concepts of sup-hesitant fuzzy right (resp., left, interior, two-sided) ideals of semigroups, the concepts of sup+α-hesitant fuzzy right (resp., left, interior, two-sided) ideals and sup-β-hesitant fuzzy right (resp., left, interior, two-sided)
Uraiwan Jittburus   +5 more
doaj   +1 more source

On varieties of regular $*$-semigroups [PDF]

open access: yesCzechoslovak Mathematical Journal, 1991
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Flows on Classes of Regular Semigroups and Cauchy Categories

open access: yesJournal of Mathematics, 2019
We consider the structure of the flow monoid for some classes of regular semigroups (which are special case of flows on categories) and for Cauchy categories.
Suha Ahmed Wazzan
doaj   +1 more source

F-regular semigroups

open access: yesJournal of Algebra, 2004
A regular semigroup \(S\) is called \(F\)-regular if there exists a group congruence \(\rho\) on \(S\) such that every \(\rho\)-class contains a greatest element with respect to the natural partial order on \(S\). Continuing many investigations of \(F\)-regular semigroups, the authors characterize them and give a new representation of such semigroups ...
Smith, M. Paula Marques   +2 more
openaire   +4 more sources

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