论文标题

图形的多数边彩色

Majority Edge-Colorings of Graphs

论文作者

Bock, Felix, Kalinowski, Rafał, Pardey, Johannes, Pilśniak, Monika, Rautenbach, Dieter, Woźniak, Mariusz

论文摘要

我们提出了大多数$ k $ - 颜色的图形$ g $的概念,这是$ g $的边缘颜色,带有$ k $颜色,因此,对于每个顶点$ u $ $ g $ $ g $,最多是$ g $的边缘,$ g $ cosist a $ u $的边缘具有相同的颜色。我们表明的最佳结果表明,每图至少$ 2 $的每图都有多数$ 4 $ - 边缘颜色,并且每张最低学位的每图至少$ 4 $都有大多数$ 3 $ - edge-the。此外,我们讨论了多数边颜色和一些相关开放问题的自然变化。

We propose the notion of a majority $k$-edge-coloring of a graph $G$, which is an edge-coloring of $G$ with $k$ colors such that, for every vertex $u$ of $G$, at most half the edges of $G$ incident with $u$ have the same color. We show the best possible results that every graph of minimum degree at least $2$ has a majority $4$-edge-coloring, and that every graph of minimum degree at least $4$ has a majority $3$-edge-coloring. Furthermore, we discuss a natural variation of majority edge-colorings and some related open problems.

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