Jiadong Wu

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20242026

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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…

The α-spectral Turán type problems for graphs

Spectral extremal problems for degenerate graphs

The $α$ -spectral Turán type problems for graphs