Jiadong Wu

activity

20242026

collaborators

4 papers

math.CO2026

The signless Laplacian spectral Turán problems for hypergraphs

Yongchun Lu, Jiadong Wu, Liying Kang

Let $H = (V, E)$ be an $r$ -uniform hypergraph on $n$ vertices. The signless Laplacian spectral radius of $H$ is defined as the maximum modulus of the eigenvalues…

math.CO2025

The $α$ -spectral Turán type problems for graphs

Jiadong Wu, Yongchun Lu, Liying Kang

For $0 \leq α < 1$ , the $α$ -spectral radius of a graph $G$ is defined as the largest eigenvalue of $A_{α} (G) = α D (G) + (1 - α) A (G)$ , where $D (G)$ and $A (G)$ are the diagonal matrix of degre…

math.CO2025

Spectral extremal problems for degenerate graphs

Jiadong Wu, Liying Kang, Zhenyu Ni

A family of graphs is called degenerate if it contains at least one bipartite graph. In this paper, we investigate the spectral extremal problems for a degenerate family of graphs…

math.CO2024

Spectral Extremal Graphs of Planar Graphs with Fixed Size

Liangdong Fan, Liying Kang, Jiadong Wu

Tait and Tobin [J. Combin. Theory Ser. B 126 (2017) 137--161] determined the unique spectral extremal graph over all outerplanar graphs and the unique spectral extremal graph over…

The signless Laplacian spectral Turán problems for hypergraphs

The α-spectral Turán type problems for graphs

Spectral extremal problems for degenerate graphs

Spectral Extremal Graphs of Planar Graphs with Fixed Size

The $α$ -spectral Turán type problems for graphs