Results 11 to 20 of about 6,864 (172)

TRIANGULAR MATRIX REPRESENTATIONS OF SKEW MONOID RINGS [PDF]

open access: yes, 2010
Let R be a ring and S a u.p.-monoid. Assume that there is a monoid homomorphism α : S → Aut (R). Suppose that α is weakly rigid and lR(Ra) is pure as a left ideal of R for every element a ∈ R.
Zhongkui, Liu, Xiaoyan, Yang
core   +1 more source

Properties of the subsemigroups of the bicyclic monoid [PDF]

open access: yes, 2002
In this paper we study some properties of the subsemigroups of the bicyclic monoid B, by using a recent description of its subsemigroups. We start by giving necessary and sufficient conditions for a subsemigroup to be finitely generated.
Ruskuc, Nik   +3 more
core   +1 more source

The Talented monoid of a graph and its connections with the Leavitt path algebra [PDF]

open access: yes, 2022
In this talk, we introduce an algebraic entity arising from a directed graph - the talented monoid. The talented monoid has an interesting relationship with the Leavitt path algebra.
Sebandal, Alfilgen
core  

A Minimal Pseudo-complex Monoid

open access: yes, 2023
A monoid is pseudo-complex if the semigroup variety it generates has uncountably many subvarieties, while the monoid variety it generates has only finitely many subvarieties. The smallest pseudo-complex monoid currently known is of order seven.
Lee, Edmond W. H.
core   +1 more source

ON SKEW GENERALIZED TRIANGULAR MATRIX RINGS [PDF]

open access: yesJournal of Algebraic Systems
In this article, we study skew monoid rings in which the monoid used in their structure is a quotient of a free monoid. We study annihilator conditions of them and describe conditions for transferring some properties from the base ring $R$ to these ...
Mohammad Habibi, Kamal Paykan
doaj   +1 more source

Continuous Homomorphisms Defined on (Dense) Submonoids of Products of Topological Monoids

open access: yesAxioms, 2020
We study the factorization properties of continuous homomorphisms defined on a (dense) submonoid S of a Tychonoff product D = ∏ i ∈ I D i of topological or even topologized monoids.
Mikhail Tkachenko
doaj   +1 more source

On a complete topological inverse polycyclic monoid

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2016
We give sufficient conditions when a topological inverse $\lambda$-polycyclic monoid $P_{\lambda}$ is absolutely $H$-closed in the class of topological inverse semigroups.
S.O. Bardyla, O.V. Gutik
doaj   +1 more source

On semifir monoid rings [PDF]

open access: yes, 1989
We give a new condition on a monoid M for the monoid ring F[M] to be a 2-fir. Futhermore, we construct a monoid M that satisfies all the currently known necessary conditions for F[M] to be a semifir and that the group of units ofM is trivial, but M is ...
Cedó, Ferran, F. Cedó
core   +1 more source

The Möbius Inverse Monoid [PDF]

open access: yes, 1998
We show that the Möbius transformations generate anF-inverse monoid whose maximum group image is the Möbius group.
Lawson, Mark V.
core   +1 more source

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