Zobrazeno 1 - 10
of 57
pro vyhledávání: '"António Malheiro"'
Publikováno v:
Journal of Algebra. 606:819-850
We exhibit faithful representations of the hypoplactic, stalactic, taiga, sylvester, Baxter and right patience sorting monoids of each finite rank as monoids of upper triangular matrices over any semiring from a large class including the tropical sem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2fb809a0a977c9dd498443eaf7cd025
https://doi.org/10.1016/j.jalgebra.2022.04.033
https://doi.org/10.1016/j.jalgebra.2022.04.033
Publikováno v:
Journal of Algebraic Combinatorics.
This paper presents new results on the identities satisfied by the sylvester and Baxter monoids. We show how to embed these monoids, of any rank strictly greater than 2, into a direct product of copies of the corresponding monoid of rank 2. This conf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71a81dd555f217d9e86bf337970015e9
https://doi.org/10.1007/s10801-022-01202-6
https://doi.org/10.1007/s10801-022-01202-6
Publikováno v:
Algebras and Representation Theory.
The algebraic variety defined by the idempotents of an incidence monoid is investigated. Its irreducible components are determined. The intersection with an antichain submonoid is shown to be the union of these irreducible components. The antichain m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d164d196b2b136d71e6d16b4f4daacb
https://doi.org/10.1007/s10468-022-10162-1
https://doi.org/10.1007/s10468-022-10162-1
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
This paper presents new results on the identities satisfied by the hypoplactic monoid. We show how to embed the hypoplactic monoid of any rank strictly greater than 2 (including infinite rank) into a direct product of copies of the hypoplactic monoid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29e046f50b2788114bde2c9e29838177
https://hdl.handle.net/10362/132653
https://hdl.handle.net/10362/132653
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::ea180a409cca4778f813aba6996fb0aa
Publikováno v:
e-cadernos ces, Vol 15 (2012)
Partindo da relevância social da ideia de acesso e da ambiguidade significativa que encerra propomo-nos indagar brevemente do seu sentido normativo-jurídico quando referido à provisão e distribuição dos bens sociais fundamentais, concentrando-n
Externí odkaz:
https://doaj.org/article/d847a80918fb43498f9f5370d8426e7b
Autor:
António Malheiro, Alan J. Cain
Publikováno v:
Journal of Algebra. 502:347-381
Kashiwara's crystal graphs have a natural monoid structure that arises by identifying words labelling vertices that appear in the same position of isomorphic components. The celebrated plactic monoid (the monoid of Young tableaux), arises in this way
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::382d64b5d2fa0331a1d099edc30cd841
https://doi.org/10.1016/j.jalgebra.2018.01.036
https://doi.org/10.1016/j.jalgebra.2018.01.036
Publikováno v:
Proceedings of the Royal Society of Edinburgh: Section A Mathematics. 147:1169-1214
The action of any group on itself by conjugation and the corresponding conjugacy relation play an important role in group theory. There have been many attempts to find notions of conjugacy in semigroups that would be useful in special classes of semi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e04263c25e12e80b203fa9d1ec3fde9
https://doi.org/10.1017/s0308210517000099
https://doi.org/10.1017/s0308210517000099
Autor:
António Malheiro, Alan J. Cain
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
The cyclic shift graph of a monoid is the graph whose vertices are elements of the monoid and whose edges link elements that differ by a cyclic shift. This paper examines the cyclic shift graphs of `plactic-like' monoids, whose elements can be viewed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8e7f3158166df9293f433967ec89cfa
http://www.scopus.com/inward/record.url?scp=85068467706&partnerID=8YFLogxK
http://www.scopus.com/inward/record.url?scp=85068467706&partnerID=8YFLogxK
Autor:
António Malheiro, José Francisco Reis
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
For both authors, this work was partially supported by the Fundacao para a Ciencia e a Tecnologia (Portuguese Foundation for Science and Technology) through the project UID/MAT/00297/2013 (Centro de Matematica e Aplicacoes) and the project PTDC/MHC-F
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::781fa665f70ebffbca4e15f2dd3213e1
http://www.scopus.com/inward/record.url?scp=85061315416&partnerID=8YFLogxK
http://www.scopus.com/inward/record.url?scp=85061315416&partnerID=8YFLogxK