Jifu Lin

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20242026

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math.CO2025

Oriented diameter of graphs with diameter $4$ and given edge girth

Jifu Lin, Lihua You

Let $f (d)$ be the smallest value for which every bridgeless graph $G$ with diameter $d$ admits a strong orientation $G$ such that the diameter of $\overrightarrow{…

math.CO2025

The connectedness of friends-and-strangers graphs about graph parameters and others

Xinghui Zhao, Lihua You, Jifu Lin +1

Let $X$ and $Y$ be two graphs of order $n$ . The friends-and-strangers graph $FS (X, Y)$ of $X$ and $Y$ is a graph whose vertex set consists of all bijections $σ: V(X)\righta…

Oriented diameter of graphs with diameter 4 and given edge girth

The connectedness of friends-and-strangers graphs about graph parameters and others

Oriented diameter of graphs with diameter $4$ and given edge girth