Jiadong Wu

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20242026

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math.CO2026

A reduction principle for non- $r$ -partite spectral extremal problems, with a complete multipartite classification

Suil O, Jiadong Wu

A graph is non- $r$ -partite if its chromatic number exceeds $r$ . For an edge-color-critical graph $F$ with $χ (F) = r + 1$ , let $ex_{r + 1, ρ} (n, F)$ be the maximum adjacency spectr…

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…

A reduction principle for non-r-partite spectral extremal problems, with a complete multipartite classification

The signless Laplacian spectral Turán problems for hypergraphs

A reduction principle for non- $r$ -partite spectral extremal problems, with a complete multipartite classification