Yifeng Huang

activity

20192026

most citedUnit equations on quaternions

2 citations · 5 across the 11 of their papers we have counts for

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3 papers · 1 filter

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.CO2022

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.CO2021★ 1 cited

Continuously Increasing Subsequences of Random Multiset Permutations

Alexander Clifton, Bishal Deb, Yifeng Huang +2

For a word $π$ and integer $i$ , we define $L^{i} (π)$ to be the length of the longest subsequence of the form $i (i + 1) \dots j$ , and we let $L (π) := max_{i} L^{i} (π)$ . In this paper we esti…

A quadratic form generalization of rational dinv

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

Continuously Increasing Subsequences of Random Multiset Permutations

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