Yanni Zhai

collaborators

3 papers

math.CO2023

Spectral extrema of ${K_{k + 1}, L_{s}}$ -free graphs

Yanni Zhai, Xiying Yuan

For a set of graphs $F$ , a graph is said to be $F$ -free if it does not contain any graph in $F$ as a subgraph. Let Ex $_{s p} (n, F)$ denote the…

math.CO2023

Spectral extrema of graphs: Forbidden star-path forests

Yanni Zhai, Xiying Yuan, Lihua You

A path of order $n$ is denoted by $P_{n}$ , and a star of order $n$ is denoted by $S_{n - 1}$ . A star-path forest is a forest whose connected components are paths and stars. In this pap…

math.CO2022

Extremal graphs for edge blow-up of lollipops

Yanni Zhai, Xiying Yuan, Zhenyu Ni

Given a graph $H$ and an integer $p$ ( $p \geq 2$ ), the edge blow-up $H^{p + 1}$ of $H$ is the graph obtained from replacing each edge in $H$ by a clique of order $(p + 1)$ , where the ne…

Spectral extrema of {Kk+1​,Ls​}-free graphs

Spectral extrema of graphs: Forbidden star-path forests

Extremal graphs for edge blow-up of lollipops

Spectral extrema of ${K_{k + 1}, L_{s}}$ -free graphs