Yichen Qin

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20242026

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math.AG2024

Irregular Hodge numbers of Frenkel--Gross connections

Yichen Qin, Christian Sevenheck, Peter Spacek

Frenkel and Gross constructed a family of connections on $P^{1} \ {0, \infty}$ , for almost simple groups $G ˇ$ and their representations. In this article, we c…

math.AG2024

Rigid $G$ -connections and nilpotency of $p$ -curvatures

Pengfei Huang, Yichen Qin, Hao Sun

Motivated by Simpson's conjecture on the motivicity of rigid irreducible connections, Esnault and Groechenig demonstrated that the mod- $p$ reductions of such connections on smooth…

Irregular Hodge numbers of Frenkel--Gross connections

Rigid G-connections and nilpotency of p-curvatures

Rigid $G$ -connections and nilpotency of $p$ -curvatures