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arXiv 2108.00635math.CO
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笛卡尔积图的区分染色的数量

The number of distinguishing colorings of a Cartesian product graph

Saeid Alikhani, Mohammad Hadi Shekarriz

AI总结:

本文计算笛卡尔积图的区分阈值,并进一步计算网格的非等价区分染色数量,核心方法基于自同构保持性质与颜色数下界分析。

摘要:

顶点染色被称为区分染色,如果只有恒等自同构能够保持该染色不变。图$G$的区分阈值$\ heta(G)$是所需的最小颜色数$k$,使得$G$的任意$k$-染色都是区分染色。在本文中,我们计算了笛卡尔积图的区分阈值。此外,我们计算了网格的非等价区分染色的数量。

英文摘要:

A vertex coloring is called distinguishing if the identity is the only automorphism that can preserve it. The distinguishing threshold $θ(G)$ of a graph $G$ is the minimum number of colors $k$ required that any arbitrary $k$-coloring of $G$ is distinguishing. In this paper, we calculate the distinguishing threshold of a Cartesian product graph. Moreover, we calculate the number of non-equivalent distinguishing colorings of grids.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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