Nhat Minh Doan (Đoàn Nhật Minh)

Hello! I am Minh, a researcher at the Institute of Mathematics, VAST. I was an SASEA Research Fellow at the National University of Singapore from 2024 to 2026, under Prof. Ser Peow Tan. My PhD thesis was completed at the University of Luxembourg under Prof. Hugo Parlier in 2022.

My research focuses on hyperbolic surfaces, length-spectrum identities, and related topics. I was introduced to hyperbolic geometry during my Master’s (M2) at the University of Nice Sophia Antipolis in 2017, where Prof. François Labourie supervised my master’s thesis.

Here is my CV and my email address: dnminh@math.ac.vn

I am organizing a Hyperbolic Geometry & Related Topics Online Seminar. We welcome talks from researchers and graduate students.

Upcoming (tentative) trips:

Chengdu, China (01 - 03 April), Hefei, China (04 - 11 April)
Bernoulli Center and Fribourg University, Switzerland (14 - 22 April)
NUS, Singapore (18 - 22 May)
Jeju, Korea (25 July - 01 August)
Hebei Normal University, Shijiazhuang, China (31 August - 4 September)
IMJ-PRG, Paris (15 November - 15 December)

Papers

9. Graded Bridgeman dilogarithm identities on hyperbolic surfaces.
Ara Basmajian, Nhat Minh Doan, Hugo Parlier, Ser Peow Tan.
arXiv:2601.03876. Submitted.

8. Optimal Farey sequence for the congruence subgroup Γ0(2^n).
Nhat Minh Doan, Sang-hyun Kim, Mong Lung Lang, Ser Peow Tan.
arXiv:2601.01324.

7. Some arithmetic aspects of ortho-integral surfaces.
Nhat Minh Doan, Khanh Le.
Trans. AMS, to appear.

6. Some remarks on subgroups of free-by-cyclic groups.
Nhat Minh Doan, Hoang Thanh Nguyen.
Vietnam J. Math., to appear.

5. Self-intersection of arcs on a pair of pants.
Nhat Minh Doan, Hanh Vo.
Bull. LMS, 57 (2025), 2190 - 2209.

4. Optimal special polygons for the congruence subgroups Γ0(p) and Γ0(pq).
Nhat Minh Doan, Sang-hyun Kim, Mong Lung Lang, Ser Peow Tan.
J. Geom. Anal., Volume 35, 216 (2025).

3. Ortho-integral surfaces.
Nhat Minh Doan.
Adv. Math., Volume 466, April 2025, 110162.

2. Geometric filling curves on punctured surfaces.
Nhat Minh Doan.
Glasgow Math. J., Volume 65, Issue 2, May 2023, pp. 383 - 400.

1. Measuring pants.
Nhat Minh Doan, Hugo Parlier, Ser Peow Tan.
Trans. AMS, 376 (2023), 5281 - 5306.

Grants

5. Vietnam National Foundation for Science and Technology Development (NAFOSTED) under grant number 101.04-2023.33 (2024 - 2026).

4. Singapore National Research Foundation (NRF) under grant E-146-00-0029-01 (2024 - 2026).

3. Institute of Mathematics at the Vietnam Academy of Science and Technology under project code IM-VAST01-2022.01 (2022 - 2024).

2. Luxembourg National Research Fund (FNR) under grant PRIDE15/10949314/GSM (2018 - 2022).

1. Master 2 Excellence Scholarship, J.A. Dieudonné Mathematics Laboratory, France (2016 - 2017).