Results 61 to 70 of about 340,049 (197)

THE WELL-ORDERING OF DUAL BRAID MONOID

open access: yesJournal of Knot Theory and Its Ramifications, 2010
We describe the restriction of the Dehornoy ordering of braids to the dual braid monoids introduced by Birman, Ko and Lee: we give an inductive characterization of the ordering of the dual braid monoids and compute the corresponding ordinal type. The proof consists in introducing a new ordering on the dual braid monoid using the rotating normal form ...
openaire   +2 more sources

Representable semilattice-ordered monoids [PDF]

open access: yesAlgebra universalis, 2007
We show that no finite set of first-order axioms can define the class of representable semilattice-ordered monoids.
Robin Hirsch, Szabolcs Mikulás
openaire   +1 more source

Geometric inverse semigroup theory: a note on the Milnor–Schwarz lemma for inverse monoids

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 9, September 2026.
Abstract We generalise the Milnor–Schwarz lemma to inverse monoids acting on presheaves of geodesic metric spaces. We provide two proofs of this fact: one only uses elementary techniques, inspired by the arguments for group actions on metric spaces; the other involves a version of the Vietoris–Rips complex, and builds on work of Chung–Martínez–Szakács.
Giorgio Mangioni, Francesco Tesolin
wiley   +1 more source

Noetherian properties in composite generalized power series rings

open access: yesOpen Mathematics, 2020
Let (Γ,≤)({\mathrm{\Gamma}},\le ) be a strictly ordered monoid, and let Γ⁎=Γ\{0}{{\mathrm{\Gamma}}}^{\ast }\left={\mathrm{\Gamma}}\backslash \{0\}. Let D⊆ED\subseteq E be an extension of commutative rings with identity, and let I be a nonzero proper ...
Lim Jung Wook, Oh Dong Yeol
doaj   +1 more source

A well-ordering of dual braid monoids [PDF]

open access: yesComptes Rendus. Mathématique, 2008
Let B n + ∗ denote the dual braid monoid on n
openaire   +3 more sources

Interpolation categories for conformal embeddings

open access: yesProceedings of the London Mathematical Society, Volume 133, Issue 3, September 2026.
Abstract In this paper, we give a diagrammatic description of the categories of modules coming from the conformal embeddings V(slN,N)⊂V(soN2−1,1)$\mathcal{V}({\mathfrak{sl}}_{N},N)\subset \mathcal{V}({\mathfrak{so}}_{{N}^{2}-1},1)$. A small variant of this construction (morally corresponding to a conformal embedding of glN${\mathfrak{gl}}_{N}$ level N ...
Cain Edie‐Michell, Noah Snyder
wiley   +1 more source

Naturally ordered regular semigroups with an inverse monoid transversal

open access: yes, 2008
The notion of an inverse transversal of a regular semigroup is well-known. Here we investigate naturally ordered regular semigroups that have an inverse transversal.
Santos, M. H. Almeida, Blyth, T. S.
core   +1 more source

On well quasi orders of free monoids

open access: yesTheoretical Computer Science, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lucian Ilie, Arto Salomaa
openaire   +2 more sources

On the positivity and integrality of coefficients of mirror maps

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 8, August 2026.
Abstract We present natural conjectural generalisations of the ‘positivity and integrality of mirror maps’ phenomenon, encompassing the mirror maps appearing in the Batyrev–Borisov construction of mirror Calabi–Yau complete intersections in Fano toric varieties as a special case.
Sophie Bleau, Nick Sheridan
wiley   +1 more source

The Monoid Rank and Monoid Presentation of Order-Preserving and Order-Decreasing Full Contraction Mappings

open access: yesMathematical Sciences and Applications E-Notes, 2021
Let $n \in \mathbb{Z}^{+}$ and $X_{n}=\{1,2,\ldots,n\}$ be a finite set. Let $\mathcal ODCT_{n}$ be the order-preserving and order-decreasing full contraction mappings on $X_{n}$. It is well known that $\mathcal ODCT_{n}$ is a monoid. In this paper, we have found the monoid rank and monoid presentation of $\mathcal ODCT_{n}$.
openaire   +3 more sources

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