Huiqiu Lin

activity

20132026

most citedEigenvalues and triangles in graphs

84 citations · 255 across the 31 of their papers we have counts for

collaborators

32 papers

quant-ph2026

Zero transfer on mixed graphs

Xingkun Song, Huiqiu Lin

In this paper, we investigate zero transfer on mixed graphs. Zero transfer is a quantum walk phenomenon in which the transition amplitude between two vertices is identically zero f…

math.CO2023

Extremal spectral results of planar graphs without vertex-disjoint cycles

Longfei Fang, Huiqiu Lin, Yongtang Shi

Given a planar graph family $F$ , let $ex_{P} (n, F)$ and $spex_{P} (n, F)$ be the maximum size and maximum spectral radius…

math.CO2023★ 2 cited

Spectral extremal problem on $t$ copies of $ℓ$ -cycle

Longfei Fang, Mingqing Zhai, Huiqiu Lin

Denote by $t C_{ℓ}$ the disjoint union of $t$ cycles of length $ℓ$ . Let $e x (n, F)$ and $s p e x (n, F)$ be the maximum size and spectral radius over all $n$ -vertex $F$ -free graphs, re…

math.CO2022★ 1 cited

Spectral conditions for $k$ -extendability and $k$ -factors of bipartite graphs

Dandan Fan, Huiqiu Lin

Let $G$ be a connected graph. If $G$ contains a matching of size $k$ , and every matching of size $k$ is contained in a perfect matching of $G$ , then $G$ is said to be \emph{ $k$ -ext…

math.CO2022

State transfer on integral mixed circulant graphs

Xing-Kun Song, Huiqiu Lin

A mixed circulant graph is called integral if all eigenvalues of its Hermitian adjacency matrix are integers. The main purpose of this paper is to investigate the existence of perf…

math.CO2022

Spectral radius and edge-disjoint spanning trees

Dandan Fan, Xiaofeng Gu, Huiqiu Lin

The spanning tree packing number of a graph $G$ , denoted by $τ (G)$ , is the maximum number of edge-disjoint spanning trees contained in $G$ . The study of $τ (G)$ is one of the classi…