Results 31 to 40 of about 448 (71)

On š“ -regular semigroups

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

On a problem of M. Kambites regarding abundant semigroups [PDF]

open access: yes, 2011
A semigroup is regular if it contains at least one idempotent in each -class and in each L-class. A regular semigroup is inverse if it satisfies either of the following equivalent conditions: (i) there is a unique idempotent in each -class and in each L ...
Araújo, João, Kinyon, Michael
core   +2 more sources

Some Innovative Types of Fuzzy Ideals in AG-Groupoids

open access: yesJournal of Intelligent Systems, 2019
AG-groupoids (non-associative structure) are basic structures in Flocks theory. This theory mainly focuses on distance optimization, motion replication, and leadership maintenance with a wide range of applications in physics and biology.
Khan Faiz Muhammad   +4 more
doaj   +1 more source

A new characterization of a proper type B semigroup

open access: yesOpen Mathematics, 2020
In this paper, we develop the elementary theory of inverse semigroups to the cases of type B semigroups. The main aim of this paper is to study proper type B semigroups. We introduce first the concept of a left admissible triple.
Li Chunhua, Pei Zhi, Xu Baogen
doaj   +1 more source

Constrained abstract representation problems in semigroups and partial groupoids [PDF]

open access: yes, 2004
In this paper different constrained abstract representation theorems for partial groupoids and semigroups are proved. Methods for improving the retract properties of the structures are also developed.
A. Mani
core   +2 more sources

In vitro antimicrobial activity of a gel containing antimicrobial peptide AMP2041, chlorhexidine digluconate and Tris‐EDTA on clinical isolates of Pseudomonas aeruginosa from canine otitis

open access: yesVeterinary Dermatology, Volume 27, Issue 5, Page 391-e98, October 2016., 2016
Background– Pseudomonas aeruginosa (PA) may cause suppurative otitis externa with severe inflammation and ulceration in dogs. Multidrug resistance is commonly reported for this organism, creating a difficult therapeutic challenge. Objective– The aim of this study was to evaluate the in vitro antimicrobial activity of a gel containing 0.5 µg/mL of ...
Giovanni Ghibaudo   +6 more
wiley   +1 more source

A Short Note on Bands of Groups [PDF]

open access: yes, 2015
In this paper we give necessary and sufficient conditions on a semigroup S that it be semilattice of groups, a normal band of groups, and a matrix of groups.DOI : http://dx.doi.org/10.22342/jims.21.1.151.19 ...
Davvaz, B. (Bijan)
core   +3 more sources

Comultiplication on monoids

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 20, Issue 4, Page 803-811, 1997., 1997
A comultiplication on a monoid S is a homomorphism m : S → Sāˆ—S (the free product of S with itself) whose composition with each projection is the identity homomorphism. We investigate how the existence of a comultiplication on S restricts the structure of S.
Martin Arkowitz, Mauricio Gutierrez
wiley   +1 more source

Linear Diophantine fuzzy sets over complex fuzzy information with applications in information theory

open access: yesAin Shams Engineering Journal
This article aims to link AG-groupoids and complex fuzzy set theory by constructing a method to rank complex fuzzy information, provide an alternative definition of CLDFS, and an algorithm for data encryption/decryption using AG-groupoids.
Faisal Yousafzai   +4 more
doaj   +1 more source

On f - prime radical in ordered semigroups

open access: yesOpen Mathematics, 2018
In this paper, we introduce the concepts of f-prime ideals, f-semiprime ideals and f-prime radicals in ordered semigroups. Furthermore, some results on f-prime radicals and f-primary decomposition of an ideal in an ordered semigroup are obtained.
Gu Ze
doaj   +1 more source

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