Results 51 to 60 of about 167 (89)

On the Partially Ordered Monoid Generated by the Operators H, S, P, Ps on Classes of Algebras [PDF]

open access: yes, 2001
Let H, S, P be the standard operators on classes of algebras of the same type and Ps be the operator of closure under subdirect products. In this paper the monoid generated by class operators H, S, P, Ps and the corresponding partially ordered set are ...
Tasić, Boža
core   +1 more source

Embedding finite and infinite words into overlapping tiles [PDF]

open access: yes, 2014
International audienceIn this paper, we study languages of finite and infinite birooted words. We show how the embedding of free ω-semigroups of finite and infinite words into the monoid of birooted words can be generalized to the embedding of two-sorted
David Janin   +3 more
core   +1 more source

Morita equivalence for partially ordered monoids and po-Γ-semigroups with unities [PDF]

open access: yes, 2014
We prove that operator pomonoids of a po-Γ-semigroup with unities are Morita equivalent pomonoids. Conversely, we show that if L and R are Morita equivalent pomonoids then a po-Γ-semigroup A with unities can be constructed such that left and right ...
Sardar, S.K., Gupta, S.
core   +2 more sources

Dually residuated $\ell$-monoids having no non-trivial convex subalgebras [PDF]

open access: yes, 2006
summary:In this note we describe the structure of dually residuated $\ell $-monoids ($\mathit{DR}\ell $-monoids) that have no non-trivial convex ...
Kühr, Jan
core   +1 more source

The Wreath Product Principle for Ordered Semigroups

open access: yes, 2000
Straubing's wreath product principle provides a description of the languages recognized by the wreath product of two monoids. A similar principle for ordered semigroups is given in this paper.
Pascal Weil, L Laa, Jean-Eric Pin
core  

Fact, Fiction, and Fitness. [PDF]

open access: yesEntropy (Basel), 2020
Prakash C   +4 more
europepmc   +1 more source

Ordered Categories and Ordered Semigroups

open access: yes
We use ordered categories to study semidirect decompositions of nite ordered semigroups. We obtain ordered analogues of the derived category theorem and of the delay theorem.
Arnaud Pinguet   +2 more
core  

A characterization of seminormal C-monoids. [PDF]

open access: yesBoll Unione Mat Ital (2008), 2019
Geroldinger A, Zhong Q.
europepmc   +1 more source

Osaliselt järjestatud poolrühmade Morita ekvivalentsus [PDF]

open access: yes, 2011
Väitekirjas uuritakse, kas ja kuivõrd on võimalik üldistada Morita ekvivalentsuse mõistet ja teooriat poolrühmadelt osaliselt järjestatud poolrühmadele.
Tart, Lauri
core  

A groupoid approach to regular *-semigroups

open access: yes
In this paper we develop a new groupoid-based structure theory for the class of regular ⁎-semigroups. This class occupies something of a ‘sweet spot’ between the important classes of inverse and regular semigroups, and contains many natural examples ...
Muhammed, P. A. Azeef   +1 more
core   +1 more source

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