Le Xu

activity

20232026

most citedSpectral conditions for the existence of chorded cycles in graphs with fixed size

1 citations · 2 across the 18 of their papers we have counts for

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2 papers · 1 filter

math.CO2025

Girth and Laplacian eigenvalue distribution

Leyou Xu, Bo Zhou

Let $G$ be a connected graph of order $n$ with girth $g$ . For $k = 1, \dots, min {g - 1, n - g}$ , let $n (G, k)$ be the number of Laplacian eigenvalues (counting multiplicities) of $G$ tha…

math.CO2025

Cycles and paths through specified vertices in graphs with a given clique number

Chengli Li, Leyou Xu

B. Bollobás and G. Brightwell and independently R. Shi proved the existence of a cycle through all vertices whose degrees at least $\frac{n}{2}$ in any $2$ -connected graph of order…