activity
20022020
most citedRandom subgroups of Thompson's group

20 citations · 75 across the 28 of their papers we have counts for

collaborators

31 papers

cs.DS2020

Distributions of restricted rotation distances

Sean Cleary, Haris Nadeem

Rotation distances measure the differences in structure between rooted ordered binary trees. The one-dimensional skeleta of associahedra are rotation graphs, where two vertices rep…

math.GR2020

Elements with north-south dynamics and free subgroups have positive density in Thompson's groups T and V

Sean Cleary, Ariadna Fossas Tenas

We show that the density of elements in Thompson's groups T and V which have north-south dynamics acting on the circle is positive with respect to a stratification in terms of size…

cs.DS2020

An efficient sampling algorithm for difficult tree pairs

Sean Cleary, Roland Maio

It is an open question whether there exists a polynomial-time algorithm for computing the rotation distances between pairs of extended ordered binary trees. The problem of computin…

cs.DS2020

Counting difficult tree pairs with respect to the rotation distance problem

Sean Cleary, Roland Maio

Rotation distance between rooted binary trees is the minimum number of simple rotations needed to transform one tree into the other. Computing the rotation distance between a pair…

math.CO2017★ 2 cited

Some Distributions on Finite Rooted Binary Trees

Sean Cleary, Mareike Fischer, Robert C. Griffiths +1

We introduce some natural families of distributions on rooted binary ranked plane trees with a view toward unifying ideas from various fields, including macroevolution, epidemiolog…

math.CO2015★ 4 cited

Edge conflicts do not determine geodesics in the associahedron

Sean Cleary, Roland Maio

There are no known efficient algorithms to calculate distance in the one-skeleta of associahedra, a problem that is equivalent to finding rotation distance between rooted binary tr…