Results 21 to 30 of about 35,172 (254)

On presentations of Brauer-type monoids [PDF]

open access: yes, 2005
We obtain presentations for the Brauer monoid, the partial analogue of the Brauer monoid, and for the greatest factorizable inverse submonoid of the dual symmetric inverse monoid. In all three cases we apply the same approach, based on the realization of
Kudryavtseva, Ganna   +1 more
core   +2 more sources

Representable Monoids [PDF]

open access: yesProceedings of the American Mathematical Society, 1978
A representable monoid is one with enough representative functions to separate points. It is shown that the monoid algebra of a representable monoid is a proper algebra. In particular, the group algebra of a residually-finite group is a proper algebra. It is also shown that the free product of two representable monoids is again representable.
openaire   +2 more sources

Crystallizing the hypoplactic monoid: from quasi-Kashiwara operators to the Robinson--Schensted--Knuth-type correspondence for quasi-ribbon tableaux [PDF]

open access: yes, 2016
Crystal graphs, in the sense of Kashiwara, carry a natural monoid structure given by identifying words labelling vertices that appear in the same position of isomorphic components of the crystal.
Cain, Alan J., Malheiro, António
core   +2 more sources

A Gröbner-Shirshov basis over a special type of braid monoids

open access: yesAIMS Mathematics, 2020
The aim of this paper is to present a Gröbner-Shirshov basis for a special type of braid monoids, namely the symmetric inverse monoid In, in terms of the dex-leg ordering on the related elements of monoid.
Ahmet S. Cevik   +3 more
doaj   +1 more source

Monoidal Categories Enriched in Braided Monoidal Categories [PDF]

open access: yesInternational Mathematics Research Notices, 2017
AbstractWe introduce the notion of a monoidal category enriched in a braided monoidal category $\mathcal{V}$. We set up the basic theory, and prove a classification result in terms of braided oplax monoidal functors to the Drinfeld centre of some monoidal category $\mathcal{T}$.Even the basic theory is interesting; it shares many characteristics with ...
Morrison, Scott, Penneys, David
openaire   +2 more sources

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.
Xiaoyan, Yang, Zhongkui, Liu
core   +1 more source

Kauffman Monoids

open access: yesJournal of Knot Theory and Its Ramifications, 2002
This paper gives a self-contained and complete proof of the isomorphism of freely generated monoids extracted from Temperley-Lieb algebras with monoids made of Kauffman's diagrams.
Borisavljević, Mirjana   +2 more
openaire   +2 more sources

Lossy gossip and composition of metrics [PDF]

open access: yes, 2014
We study the monoid generated by n-by-n distance matrices under tropical (or min-plus) multiplication. Using the tropical geometry of the orthogonal group, we prove that this monoid is a finite polyhedral fan of dimension n(n-1)/2, and we compute the ...
Brouwer, Andries E.   +2 more
core   +4 more sources

Algebraic and combinatorial structures on Baxter permutations [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2011
We give a new construction of a Hopf subalgebra of the Hopf algebra of Free quasi-symmetric functions whose bases are indexed by objects belonging to the Baxter combinatorial family (\emphi.e.
Samuele Giraudo
doaj   +1 more source

Unicyclic Graphs Whose Completely Regular Endomorphisms form a Monoid

open access: yesMathematics, 2020
In this paper, completely regular endomorphisms of unicyclic graphs are explored. Let G be a unicyclic graph and let c E n d ( G ) be the set of all completely regular endomorphisms of G.
Rui Gu, Hailong Hou
doaj   +1 more source

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