Jian He

collaborators

3 papers

math.NT2026

Non-Martingale Fixed-Point Processes for Iterated Monodromy Groups

Jianfei He, Zheng Zhu

We construct families of rational functions $f \colon \bP^1_k \to \bP^1_k$ of degree $d \geq 2$ over a perfect field $k$ whose associated fixed-point processes fail to be martingal…

math.RT2024

Higher Auslander-Reiten sequences revisited

Jian He, Hangyu Yin, Panyue Zhou

Let $(C, E, s)$ be an $n$ -exangulated category with enough projectives and enough injectives, and $X$ be a cluster-tilting subcategory of $\ma…

math.CO2024

The structure of Hurwitz numbers with fixed ramification profile and varying genus

Norman Do, Jian He, Heath Robertson

In 1891, Hurwitz introduced the enumeration of genus $g$ , degree $d$ , branched covers of the Riemann sphere with simple ramification over prescribed points and no branching elsewhe…