论文标题

在距离均衡的广义彼得森图上

On distance-balanced generalized Petersen graphs

论文作者

Ma, Gang, Wang, Jianfeng, Klavžar, Sandi

论文摘要

连接的图形$ g $直径$ {\ rm diam}(g)\ ge \ ell $是$ \ ell $ -distance-balanced如果$ | w_ | w_ {xy} | = | w_ {yx {yx} | $ for每个$ x,y \ in v(g)in v in $ d_ { $ g $的顶点接近$ x $,而不是$ y $。我们证明,普遍的彼得森图$ gp(n,k)$是$ {\ rm diam}(gp(n,k))$ - 距离均值,前提是$ n $相对于$ k $足够大。这部分解决了Miklavič和šparl\ cite {Miklavic:2018}提出的猜想。当$ n $相对于$ k $,我们还确定$ {\ rm diam}(gp(n,k))$。

A connected graph $G$ of diameter ${\rm diam}(G) \ge \ell$ is $\ell$-distance-balanced if $|W_{xy}|=|W_{yx}|$ for every $x,y\in V(G)$ with $d_{G}(x,y)=\ell$, where $W_{xy}$ is the set of vertices of $G$ that are closer to $x$ than to $y$. We prove that the generalized Petersen graph $GP(n,k)$ is ${\rm diam}(GP(n,k))$-distance-balanced provided that $n$ is large enough relative to $k$. This partially solves a conjecture posed by Miklavič and Šparl \cite{Miklavic:2018}. We also determine ${\rm diam}(GP(n,k))$ when $n$ is large enough relative to $k$.

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