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Heng Ma

马恒

Postdoc
Technion
hengmamath (at) gmail.com ; heng.ma (at) campus.technion.ac.il


About Me

I am currently a postdoc at Technion probability group, working with Oren Louidor and Eviatar Procaccia. I obtained my Ph.D. at probability group in Peking University under the supervision of Yan-Xia Ren in 2025.

Research

I’m interested in probabilistic models, particularly those that incorporate tree structures. I am trying to learn and work on more interesting subjects, e.g.,

Papers

  1. Minimum-Weight Path in a Sparse Erdős--Rényi Graph with Signed Weights
    with Pascal Maillard
    arxiv, 2025+
    arXiv

  2. Left tail of the subcritical derivative martingale in a branching Wiener process
    with Xinxin Chen and Yichao Huang
    arxiv, 2025+
    arXiv

  3. Exponential moments of truncated branching random walk martingales
    with Pascal Maillard
    Electron. J. Probab., 2025
    journal arXiv

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

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

  6. Branching random walk conditioned on large martingale limit
    with Xinxin Chen and Loïc de Raphélis
    Accepted in Ann. Inst. H. Poincaré Probab. Statist., 2024+
    arXiv slides

  7. 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

  8. Double jump in the maximum of two-type reducible branching Brownian motion
    with Yan-Xia Ren
    Accepted in Ann. Inst. H. Poincaré Probab. Statist., 2023+
    arXiv poster slides

  9. 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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