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Heng Ma

马恒

Ph.D. Student
Peking University
hengmamath (at) gmail.com ; maheng (at) stu.pku.edu.cn


About Me

I am a Ph.D. student at School of Mathematics, Peking University. I am in the probability group and my advisor is Prof. Yan-Xia Ren. I graduated from Shandong University in 2020.

News

Research

I’m interested in probabilistic models, particularly those that incorporate tree and graph structures. I have been working on the following topics

I am trying to learn and work on more interesting subjects, e.g., random trees and random networks, universality class of log-correlated fields, Gaussian multiplicative chaos, etc.

  1. Exponential moments of truncated branching random walk martingales
    with Pascal Maillard
    arxiv, 2025+
    arXiv

  2. Branching Brownian motion conditioned on large level sets
    with Xinxin Chen
    arxiv, 2024+
    arXiv slides

  3. Multifractal spectrum of branching random walks on free groups
    with Shuwen Lai and Longmin Wang
    arxiv, 2024+
    arXiv slides

  4. Branching random walk conditioned on large martingale limit
    with Xinxin Chen and Loïc de Raphélis
    arxiv, 2024+
    arXiv slides

  5. From 0 to 3: Intermediate phases between normal and anomalous spreading of two-type branching Brownian motion
    with Yan-Xia Ren
    arxiv, 2023+
    arXiv poster slides

  6. Double jump in the maximum of two-type reducible branching Brownian motion
    with Yan-Xia Ren
    Accepted in Annales de l'Institut Henri Poincaré, Probabilités et Statistiques, 2023+
    arXiv poster slides

  7. Shotgun threshold for sparse Erdős–Rényi graphs
    with Jian Ding and Yiyang Jiang
    IEEE Transactions on Information Theory, 2023
    journal arXiv poster slides


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