activity
20172026
most citedOn the coarse geometry of certain right-angled Coxeter groups

8 citations · 23 across the 12 of their papers we have counts for

collaborators

13 papers

math.DG2026

Minimal foliations, codimension-one stable norms, and a question of Bangert

Hoan Nguyen

We compute the codimension-one stable norm for a natural class of cohomogeneity-one metrics on tori. In every dimension , the formula yields smooth nonflat metrics for which…

math.GT2023

Largest hyperbolic actions of 3--manifold groups

Carolyn Abbott, Hoang Thanh Nguyen, Alexander J. Rasmussen

The set of equivalence classes of cobounded actions of a group G on different hyperbolic metric spaces carries a natural partial order. Following Abbott--Balasubramanya--Osin, the…

math.GR2022

Strongly Quasiconvex subgroups in graphs of groups

Hoang Thanh Nguyen, Hung Cong Tran

Given a graph of groups with certain conditions on vertex groups and acts acylindrically on its Bass-Serre tree . Let be a finitely…

math.GR2022★ 1 cited

Sublinearly Morse Boundary of CAT(0) admissible groups

Hoang Thanh Nguyen, Yulan Qing

We show that if G is an admissible group acting geometrically on a CAT(0) space X, then G is a hierarchically hyperbolic space and with mild assumptions the sublinearly-Morse bound…

math.GT2021★ 2 cited

Property (QT) for 3-manifold groups

Suzhen Han, Hoang Thanh Nguyen, Wenyuan Yang

According to Bestvina-Bromberg-Fujiwara, a finitely generated group is said to have property (QT) if it acts isometrically on a finite product of quasi-trees so that orbital maps a…

math.GR2020★ 2 cited

Croke-Kleiner admissible groups: Property (QT) and quasiconvexity

Hoang Thanh Nguyen, Wenyuan Yang

Croke-Kleiner admissible groups firstly introduced by Croke-Kleiner belong to a particular class of graph of groups which generalize fundamental groups of --dimensional graph ma…

math.GR2019★ 2 cited

Quasiconvexity in -manifold groups

Hoang Thanh Nguyen, Hung Cong Tran, Wenyuan Yang

In this paper, we study strongly quasiconvex subgroups in a finitely generated --manifold group . We prove that if is a compact, orientable --manifold that does n…

math.GR2019

Subgroup distortion of 3-manifold groups

Hoang Thanh Nguyen, Hongbin Sun

In this paper, we compute the subgroup distortion of all finitely generated subgroups of all finitely generated 3-manifold groups, and the subgroup distortion in this case can only…

math.GR2018

Quasi-isometry of pairs: surfaces in graph manifolds

Hoang Thanh Nguyen

We show there exists a closed graph manifold and infinitely many non-separable, horizontal surfaces such that there does not exist a quasi-…

math.GR2018★ 6 cited

Distortion of surfaces in 3-manifolds

Hoang Thanh Nguyen

Let be a properly immersed --injective surface in a non-geometric --manifold . We compute the distortion of in and show…

math.GR2017★ 8 cited

On the coarse geometry of certain right-angled Coxeter groups

Hoang Thanh Nguyen, Hung Cong Tran

Let be a connected, triangle-free, planar graph with at least five vertices that has no separating vertices or edges. If the graph is , we prove that the rig…

math.GR2017

On the relative hyperbolicity and manifold structure of certain right-angled Coxeter groups

Matthew Haulmark, Hoang Thanh Nguyen, Hung Cong Tran

In this article, we study the manifold structure and the relatively hyperbolic structure of right-angled Coxeter groups with planar nerves. We then apply our results to the quasi-i…

math.GR2017★ 2 cited

Distortion of surfaces in graph manifolds

G. Christopher Hruska, Hoang Thanh Nguyen

Let S be an immersed horizontal surface in a 3-dimensional graph manifold. We show that the fundamental group of the surface S is quadratically distorted whenever the surface is vi…