activity
20202026
most citedGeometric filling curves on punctured surfaces

1 citations · 1 across the 8 of their papers we have counts for

collaborators

9 papers

math.GT2026

Stable-norm boundary geometry on once-punctured tori

Nhat Minh Doan, Xiaobin Li, Van Nguyen

We use normal-turn estimates to study the local and global geometry of the boundaries of stable-norm balls for complete finite-area hyperbolic once-punctured tori . We sho…

math.GT2026

Graded Bridgeman dilogarithm identities on hyperbolic surfaces

Ara Basmajian, Nhat Minh Doan, Hugo Parlier +1

We establish graded versions of Bridgeman's dilogarithm identity for hyperbolic cone surfaces, including surfaces with only cusps and cone points, and provide applications to the s…

math.NT2026

Optimal Farey sequence for the Congruence subgroup

Nhat Minh Doan, Sang-hyun Kim, Mong Lung Lang +1

We prove that () has a Farey sequence such that for all . The above upper bound is optimal, and there exists a unique such th…

math.GT2025

Some arithmetic aspects of ortho-integral surfaces

Nhat Minh Doan, Khanh Le

We investigate ortho-integral (OI) hyperbolic surfaces with totally geodesic boundaries, defined by the property that every orthogeodesic (i.e. a geodesic arc meeting the boundary…

math.GT2024

Self-intersections of arcs on a pair of pants

Nhat Minh Doan, Hanh Vo

We investigate arcs on a pair of pants and present an algorithm to compute the self-intersection number of an arc. Additionally, we establish bounds for the self-intersection numbe…

math.NT2022

Optimal independent generating system for the congruence subgroups and

Nhat Minh Doan, Sang-hyun Kim, Mong Lung Lang +1

Let be a prime or its square. We prove that the congruence subgroup admits a free product decomposition into cyclic factors in such a way that the -component of…

math.GT2021

Ortho-integral surfaces

Nhat Minh Doan

This paper introduces a combinatorial structure of orthogeodesics on hyperbolic surfaces and presents several relations among them. As a primary application, we propose a recursive…

math.GT2020★ 1 cited

Geometric filling curves on punctured surfaces

Nhat Minh Doan

This paper is about a type of quantitative density of closed geodesics and orthogeodesics on complete finite-area hyperbolic surfaces. The main results are upper bounds on the leng…

math.GT2020

Measuring pants

Nhat Minh Doan, Hugo Parlier, Ser Peow Tan

We investigate the terms arising in an identity for hyperbolic surfaces proved by Luo and Tan, namely showing that they vary monotonically in terms of lengths and that they verify…