An Irrational-slope Thompson's Group. / Burillo, José; Nucinkis, Brita; Reeves, Lawrence.
In: Publicacions Matemàtiques , 01.09.2020.Research output: Contribution to journal › Article › peer-review
An Irrational-slope Thompson's Group. / Burillo, José; Nucinkis, Brita; Reeves, Lawrence.
In: Publicacions Matemàtiques , 01.09.2020.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - An Irrational-slope Thompson's Group
AU - Burillo, José
AU - Nucinkis, Brita
AU - Reeves, Lawrence
N1 - 30 pages, 18 figures
PY - 2020/9/1
Y1 - 2020/9/1
N2 - The purpose of this paper is to study the properties of the irrational-slope Thompson's group $F_\tau$ introduced by Cleary in 1995. We construct presentations, both finite and infinite and we describe its combinatorial structure using binary trees. We show that its commutator group is simple. Finally, inspired by the case of Thompson's group F, we define a unique normal form for the elements of the group and study the metric properties for the elements based on this normal form. As a corollary, we see that several embeddings of $F$ in $F_\tau$ are undistorted.
AB - The purpose of this paper is to study the properties of the irrational-slope Thompson's group $F_\tau$ introduced by Cleary in 1995. We construct presentations, both finite and infinite and we describe its combinatorial structure using binary trees. We show that its commutator group is simple. Finally, inspired by the case of Thompson's group F, we define a unique normal form for the elements of the group and study the metric properties for the elements based on this normal form. As a corollary, we see that several embeddings of $F$ in $F_\tau$ are undistorted.
KW - math.GR
KW - 20F65
M3 - Article
JO - Publicacions Matemàtiques
JF - Publicacions Matemàtiques
SN - 2014-4350
ER -