Results 11 to 20 of about 468 (134)

On continuity of homomorphisms between topological Clifford semigroups

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2014
Generalizing an old result of Bowman we prove that a homomorphism $f:X\to Y$ between topological Clifford semigroups is continuous if • the idempotent band $E_X=\{x\in X:xx=x\}$ of $X$ is a $V$-semilattice; • the topological Clifford semigroup
I. Pastukhova
doaj   +3 more sources

Characterizations of Clifford semigroup digraphs

open access: yesDiscrete Mathematics, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sayan Panma   +3 more
openaire   +2 more sources

Amalgamating inverse semigroups over ample semigroups [PDF]

open access: yesProceedings of the Estonian Academy of Sciences
We consider semigroup amalgams (S; T1, T2) in which T1 and T2 are inverse semigroups and S is a non-inverse semigroup. They are known to be non-embeddable if T1 and T2 are both groups (Clifford semigroups), but S is not such. We prove that (S; T1, T2) is
Nasir Sohail
doaj   +3 more sources

Characterizing pure, cryptic and Clifford inverse semigroups [PDF]

open access: yesCzechoslovak Mathematical Journal, 2014
The paper investigates inverse semigroups.
Petrich, Mario
openaire   +3 more sources

Some Study of Semigroups of h-Bi-Ideals of Semirings.

open access: yesComput Math Methods Med, 2021
Semigroups are generalizations of groups and rings. In the semigroup theory, there are certain kinds of band decompositions which are useful in the study of the structure of semigroups. This research will open up new horizons in the field of mathematics by aiming to use semigroup of h‐bi‐ideal of semiring with semilattice additive reduct.
Anjum R   +5 more
europepmc   +2 more sources

Bi-ideals in Clifford ordered semigroup

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2013
In this paper we characterize both the Cliord and left Cliord ordered semigroups by their bi-ideals and quasi-ideals. Also we characterize principal bi-ideal generated by an ordered idempotent in a completely regular ordered semigroup.
Hansda, Kalyan
openaire   +2 more sources

On fractional semidiscrete Dirac operators of Lévy–Leblond type

open access: yesMathematische Nachrichten, Volume 296, Issue 7, Page 2758-2779, July 2023., 2023
Abstract In this paper, we introduce a wide class of space‐fractional and time‐fractional semidiscrete Dirac operators of Lévy–Leblond type on the semidiscrete space‐time lattice hZn×[0,∞)$h{\mathbb {Z}}^n\times [0,\infty )$ (h>0$h>0$), resembling to fractional semidiscrete counterparts of the so‐called parabolic Dirac operators.
Nelson Faustino
wiley   +1 more source

Cellularity for weighted KLRW algebras of types B$B$, A(2)$A^{(2)}$, D(2)$D^{(2)}$

open access: yesJournal of the London Mathematical Society, Volume 107, Issue 3, Page 1002-1044, March 2023., 2023
Abstract This paper constructs homogeneous affine sandwich cellular bases of weighted KLRW algebras in types BZ⩾0$B_{\mathbb {Z}_{\geqslant 0}}$, A2·e(2)$A^{(2)}_{2\cdot e}$, De+1(2)$D^{(2)}_{e+1}$. Our construction immediately gives homogeneous sandwich cellular bases for the finite‐dimensional quotients of these algebras. Since weighted KLRW algebras
Andrew Mathas, Daniel Tubbenhauer
wiley   +1 more source

Some Characterizations for Approximate Biflatness of Semigroup Algebras

open access: yesJournal of Mathematics, Volume 2023, Issue 1, 2023., 2023
In this paper, we study an approximate biflatness of l1(S), where S is a Clifford semigroup. Indeed, we show that a Clifford semigroup algebra l1(S) is approximately biflat if and only if every maximal subgroup of S is amenable, E(S) is locally finite, and l1(S) has an approximate identity in c00(S).
N. Razi, A. Sahami, Faranak Farshadifar
wiley   +1 more source

Epimorphisms, Dominions, and Various Classes of Saturated Semigroups

open access: yesJournal of Mathematics, Volume 2022, Issue 1, 2022., 2022
In this paper, we discussed some saturated classes of ℋ‐commutative semigroups, left (right) regular semigroups, medial semigroups, and paramedial semigroups. The results of this paper significantly extend the long standing result about normal bands that normal bands were saturated and, thus, significantly broaden the class of saturated semigroups.
N. Alam   +5 more
wiley   +1 more source

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