Results 51 to 60 of about 35,172 (254)

Free Monoid in Monoidal Abelian Categories [PDF]

open access: yesApplied Categorical Structures, 2008
Final version, to appear in Applied Categorical Structures. [17 pages]
openaire   +2 more sources

F-Monoids [PDF]

open access: yesCommunications in Algebra, 2007
A semigroup $S$ is called $F-monoid$ if $S$ has an identity and if there exists a group congruence $\rho$ on $S$ such that each $\rho$-class of $S$ contains a greatest element with respect to the natural partial order of $S$ (see Mitsch, 1986). Generalizing results given in Giraldes et al. (2004) and specializing some of Giraldes et al. (Submitted) five
Giraldes, E.   +2 more
openaire   +3 more sources

Ap\'ery sets of shifted numerical monoids

open access: yes, 2018
A numerical monoid is an additive submonoid of the non-negative integers. Given a numerical monoid $S$, consider the family of "shifted" monoids $M_n$ obtained by adding $n$ to each generator of $S$. In this paper, we characterize the Ap\'ery set of $M_n$
O'Neill, Christopher, Pelayo, Roberto
core   +1 more source

On unitary extensions and unitary completions of topological monoids

open access: yesTopological Algebra and its Applications, 2016
The concept of a unitary Cauchy net in an arbitrary Hausdorff topological monoid generalizes the concept of a fundamental sequence of reals. We construct extensions of this monoid where all its unitary Cauchy nets converge.
Averbukh Boris G.
doaj   +1 more source

Power monoids and finiteJ-trivial monoids

open access: yesSemigroup Forum, 1984
A variety of finite monoids is a class of finite monoids closed under taking submonoids, quotients and \textit{finite} direct products. If M is a monoid, let \(P_ 1(M)\) denote the monoid of all subsets of M containing 1. If V is a variety, \(P_ 1V\) denotes the variety generated by the monoids \(P_ 1(M)\), \(M\in V\). Let J denote the variety of all J-
Pin, J.E., Margolis, S.
openaire   +2 more sources

On locally compact shift-continuous topologies on the α-bicyclic monoid

open access: yesTopological Algebra and its Applications, 2018
A topology τ on a monoid S is called shift-continuous if for every a, b ∈ S the two-sided shift S → S, x ↦ axb, is continuous. For every ordinal α ≤ ω, we describe all shift-continuous locally compact Hausdorff topologies on the α-bicyclic monoid Bα ...
Bardyla Serhii
doaj   +1 more source

Endomorphisms and anti-endomorphisms of some finite groupoids

open access: yesЖурнал Средневолжского математического общества, 2022
In this paper, we study anti-endomorphisms of some finite groupoids. Previously, special groupoids $S(k, q)$ of order $k(1+k)$ with a generating set of $k$ elements were introduced.
Litavrin Andrey V.
doaj   +1 more source

THE CHINESE MONOID

open access: yesInternational Journal of Algebra and Computation, 2001
Résumé: Cet article présente une étude combinatoire du monoïde Chinois, un monoïde ternaire proche du monoïde plaxique, fondé sur le schéma cba≡bca≡cab. Un algorithme proche de l'algorithme de Schensted nous permet de caractériser les classes d'équivalence et d'exhiber une section du monoïde.
Cassaigne, Julien   +4 more
openaire   +4 more sources

The stylic monoid

open access: yesSemigroup Forum, 2022
43 pages, 24 ...
Abram, A., Reutenauer, C.
openaire   +2 more sources

The ∞$\infty$‐categorical reflection theorem and applications

open access: yesJournal of Topology, Volume 19, Issue 1, March 2026.
Abstract We prove an ∞$\infty$‐categorical version of the reflection theorem of AdÁmek and Rosický [Arch. Math. 25 (1989), no. 1, 89–94]. Namely, that a full subcategory of a presentable ∞$\infty$‐category that is closed under limits and κ$\kappa$‐filtered colimits is a presentable ∞$\infty$‐category.
Shaul Ragimov, Tomer M. Schlank
wiley   +1 more source

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