Dan Li

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20242026

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math.CO2024

Extremal spectral radius and $g$ -good $r$ -component connectivity

Wenxiu Ding, Dan Li, Yu Wang

For $F \subseteq V (G)$ , if $G - F$ is a disconnected graph with at least $r$ components and each vertex $v \in V (G) \ F$ has at least $g$ neighbors, then $F$ is called a $g$ -go…

math.CO2024

Spectral extremal problems on outerplanar and planar graphs

Xilong Yin, Dan Li

Let $spex_{O P} (n, F)$ and $spex_{P} (n, F)$ be the maximum spectral radius over all $n$ -vertex $F$ -free outerplanar graphs and planar graphs, respect…

Extremal spectral radius and g-good r-component connectivity

Spectral extremal problems on outerplanar and planar graphs

Extremal spectral radius and $g$ -good $r$ -component connectivity