Jiaxin Zheng

activity

20222026

most citedSpectral condition for spanning

k

-ended trees in

t

-connected graphs

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

collaborators

5 papers

math.CO2026

On a conjecture of Kolokolnikov on algebraic connectivity

Cheng Chi, Junjie Wang, Jiaxin Zheng

For a graph $G$ , let $α (G)$ be the second smallest eigenvalue of the Laplacian matrix of $G$ , also known as the algebraic connectivity. Algebraic connectivity plays an important ro…

math.CO2023

Spectral condition for the existence of a chorded cycle

Jiaxin Zheng, Xueyi Huang, Junjie Wang

A chord of a cycle $C$ is an edge joining two non-consecutive vertices of $C$ . A cycle $C$ in a graph $G$ is chorded if the vertex set of $C$ induces at least one chord. In this pa…

math.CO2023★ 2 cited

Spectral condition for spanning $k$ -ended trees in $t$ -connected graphs

Jiaxin Zheng, Xueyi Huang, Junjie Wang

For any integer $k \geq 2$ , a spanning $k$ -ended tree is a spanning tree with at most $k$ leaves. In this paper, we provide a tight spectral radius condition for the existence of a…

math.CO2022

Spectral conditions for graphs having all (fractional) $[a, b]$ -factors

Jiaxin Zheng, Junjie Wang, Xueyi Huang

Let $a \leq b$ be two positive integers. We say that a graph $G$ has all $[a, b]$ -factors if it has an $h$ -factor for every function $h : V (G) \to Z^{+}$ such that $a\le…

math.CO2022

Spectral radius conditions for fractional $[a, b]$ -covered graphs

Junjie Wang, Jiaxin Zheng, Yonglei Chen

A graph $G$ is called fractional $[a, b]$ -covered if for every edge $e$ of $G$ there is a fractional $[a, b]$ -factor with the indicator function $h$ such that $h (e) = 1$ . In this paper…

On a conjecture of Kolokolnikov on algebraic connectivity

Spectral condition for the existence of a chorded cycle

Spectral condition for spanning k-ended trees in t-connected graphs

Spectral conditions for graphs having all (fractional) [a,b]-factors

Spectral radius conditions for fractional [a,b]-covered graphs

Spectral condition for spanning $k$ -ended trees in $t$ -connected graphs

Spectral conditions for graphs having all (fractional) $[a, b]$ -factors

Spectral radius conditions for fractional $[a, b]$ -covered graphs