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20172024
most citedOn parabolic subgroups of Artin-Tits groups of spherical type

29 citations · 50 across the 11 of their papers we have counts for

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13 papers · 1 filter

math.GR2024

Intersection of Parabolic Subgroups in Euclidean Braid Groups: a short proof

María Cumplido, Federica Gavazzi, Luis Paris

We give a short proof for the fact, already proven by Thomas Haettel, that the arbitrary intersection of parabolic subgroups in Euclidean Braid groups is again a p…

math.GR2022

The Word Problem is Solvable for 3-free Artin groups in Quadratic Time

Rubén Blasco-García, María Cumplido, Rose Morris-Wright

We give a quadratic-time explicit and computable algorithm to solve the word problem for Artin groups that do not contain any relations of length 3. Furthermore, we prove that, giv…

math.GR2021★ 4 cited

The conjugacy stability problem for parabolic subgroups in Artin groups

María Cumplido

Given an Artin group and a parabolic subgroup , we study if every two elements of that are conjugate in , are also conjugate in . We provide an algorithm to solve…

math.GR2021★ 1 cited

Parabolic subgroups of large-type Artin groups

María Cumplido, Alexandre Martin, Nicolas Vaskou

We show that the geometric realisation of the poset of proper parabolic subgroups of a large-type Artin group has a systolic geometry. We use this geometry to show that the set of…

math.GR2020

A new family of infinitely braided Thompson's groups

Julio Aroca, María Cumplido

We present a generalization of the Dehornoy-Brin braided Thompson group that uses recursive braids. Our new groups are denoted by , for all an…

math.GR2019

The root extraction problem for generic braids

María Cumplido, Juan González-Meneses, Marithania Silvero

We show that, generically, finding the -th root of a braid is very fast. More precisely, we provide an algorithm which, given a braid on strands and canonical length …

math.GR2019★ 1 cited

Parabolic subgroups acting on the additional length graph

Yago Antolín, María Cumplido

Let be an irreducible Artin--Tits group of spherical type. We show that periodic elements of and the elements preserving some parabolic subgroup of …

math.GR2019

Commensurability in Artin groups of spherical type

María Cumplido, Luis Paris

Let and be two Artin groups of spherical type, and let (resp. ) be the irreducible components of (resp. ). We show that and $A…

math.GR2018★ 5 cited

Conjugacy stability of parabolic subgroups of Artin-Tits groups of spherical type

Matthieu Calvez, Bruno Cisneros, María Cumplido

We give a complete classification of conjugacy stable parabolic subgroups of Artin-Tits groups of spherical type. This answers a question posed by Ivan Marin and generalizes a theo…

math.GR2017★ 29 cited

On parabolic subgroups of Artin-Tits groups of spherical type

María Cumplido, Volker Gebhardt, Juan González-Meneses +1

We show that, in an Artin-Tits group of spherical type, the intersection of two parabolic subgroups is a parabolic subgroup. Moreover, we show that the set of parabolic subgroups f…

math.GR2017

On the minimal positive standardizer of a parabolic subgroup of an Artin-Tits group

María Cumplido

The minimal standardizer of a curve system on a punctured disk is the minimal braid that transforms it into a system formed only by round curves. We give an algorithm to compute it…

math.GR2017

On the loxodromic actions of Artin-Tits groups

María Cumplido

Artin-Tits groups act on a certain delta-hyperbolic complex, called the "additional length complex". For an element of the group, acting loxodromically on this complex is a propert…

math.GR2017★ 9 cited

A positive proportion of elements of mapping class groups is pseudo-Anosov

María Cumplido, Bert Wiest

In the Cayley graph of the mapping class group of a closed surface, with respect to any generating set, we look at a ball of large radius centered on the identity vertex, and at th…