Results 51 to 60 of about 141,848 (276)

On t-semigroups

open access: yesSemigroup Forum, 1995
We discuss the notion of a t-semigroup (i.e., a semigroup \(S\) in which the relation ``is an ideal of'' is transitive among the ideals of \(S\)). In connection with the congruence extension property (CEP) and the ideal extension property (IEP), we determine that each of these properties for a semigroup \(S\) implies that \(S\) is a t-semigroup.
openaire   +2 more sources

Neutrosophic Left Almost Semigroup [PDF]

open access: yesNeutrosophic Sets and Systems, 2014
In this paper we extend the theory of neutrosophy to study left almost semigroup shortly LAsemigroup. We generalize the concepts of LA-semigroup to form that for neutrosophic LA-semigroup.
Mumtaz Ali   +3 more
doaj  

Bi-Interior Ideals of Semigroups

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2018
In this paper, as a further generalization of ideals, we introduce the notion of bi-interior ideal as a generalization of quasi ideal, bi-ideal and interior ideal of semigroup and study the properties of bi-interior ideals of semigroup, simple semigroup ...
Rao M. Murali Krishna
doaj   +1 more source

ON HYBRID INTERIOR IDEALS IN SEMIGROUPS

open access: yesПроблемы анализа, 2019
In this paper, we introduce the notion of hybrid interior ideals and hybrid characteristic interior ideals of a semigroup. We obtain some equivalent conditions for a hybrid structure to be a hybrid interior ideal of a semigroup.
K. Porselvi, B. Elavarasan
doaj   +1 more source

The cone of functionals on the Cuntz semigroup [PDF]

open access: yes, 2011
The functionals on an ordered semigroup S in the category Cu--a category to which the Cuntz semigroup of a C*-algebra naturally belongs--are investigated.
L. Robert
semanticscholar   +1 more source

On absorption in semigroups and $n$-ary semigroups [PDF]

open access: yesLogical Methods in Computer Science, 2015
The notion of absorption was developed a few years ago by Barto and Kozik and immediately found many applications, particularly in topics related to the constraint satisfaction problem. We investigate the behavior of absorption in semigroups and n-ary semigroups (that is, algebras with one n-ary associative operation).
openaire   +4 more sources

Reductive compactifications of semitopological semigroups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
We consider the enveloping semigroup of a flow generated by the action of a semitopological semigroup on any of its semigroup compactifications and explore the possibility of its being one of the known semigroup compactifications again.
Abdolmajid Fattahi   +2 more
doaj   +1 more source

ON INVERSE SEMIGROUP C ∗ -ALGEBRAS AND CROSSED PRODUCTS [PDF]

open access: yes, 2011
We describe the C -algebra of an E-unitary or strongly 0- E-unitary inverse semigroup as the partial crossed product of a commu- tative C -algebra by the maximal group image of the inverse semigroup.
David Milan, B. Steinberg
semanticscholar   +1 more source

THE ÉTALE GROUPOID OF AN INVERSE SEMIGROUP AS A GROUPOID OF FILTERS [PDF]

open access: yesJournal of the Australian Mathematical Society, 2011
Paterson showed how to construct an étale groupoid from an inverse semigroup using ideas from functional analysis. This construction was later simplified by Lenz.
M. Lawson, S. Margolis, B. Steinberg
semanticscholar   +1 more source

Inverse semigroups and varieties of finite semigroups

open access: yesJournal of Algebra, 1987
This third paper of the series of three [see the preceding reviews] is devoted to the study of varieties of finite monoids - classes of (finite) monoids closed under the taking of submonoids, quotients and finite direct products, and in particular the variety Inv generated by finite inverse monoids.
Jean-Eric Pin, Stuart W. Margolis
openaire   +3 more sources

Home - About - Disclaimer - Privacy