Yifeng Huang

collaborators

3 papers

math.CO2026

A quadratic form generalization of rational dinv

Yifeng Huang

We introduce a quadratic form $Q$ on the space of functions on the gap poset $G$ of the numerical semigroup $⟨ a, b ⟩$ . We prove combinatorially that when evaluated on th…

math.CO2025

Lattices in $F_{q} [[T]]^{d}$ and spiral shifting operators

Yifeng Huang, Ruofan Jiang

We investigate the algebra and combinatorics of an analogue of the Hermite normal form that classifies finite-index submodules of $F_{q} [[T]]^{d}$ . We identity both normal form…

math.AG2024

Cohomology of configuration spaces on punctured varieties

Yifeng Huang

In the theory of configuration spaces, "splitting" usually refers to the phenomenon that the configuration spaces on a manifold and those on its punctured version are closely relat…

A quadratic form generalization of rational dinv

Lattices in Fq​[[T]]d and spiral shifting operators

Cohomology of configuration spaces on punctured varieties

Lattices in $F_{q} [[T]]^{d}$ and spiral shifting operators