An __acyclic__ edge coloring of a graph is a proper edge coloring such that there are no bichromatic cycles. The __acyclic chromatic index__ of a graph is the minimum number __k__ such that there is an acyclic edge coloring using __k__ colors and is denoted by __a__′(__G__). It was conjectured by Al
Edge colorings of complete graphs without tricolored triangles
✍ Scribed by András Gyárfás; Gábor Simony
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 59 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
We show some consequences of results of Gallai concerning edge colorings of complete graphs that contain no tricolored triangles. We prove two conjectures of Bialostocki and Voxman about the existence of special monochromatic spanning trees in such colorings. We also determine the size of largest monochromatic stars guaranteed to occur. © 2004 Wiley Periodicals, Inc. J Graph Theory 46: 211–216, 2004
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## Abstract A proper coloring of the edges of a graph __G__ is called __acyclic__ if there is no 2‐colored cycle in __G__. The __acyclic edge chromatic number__ of __G__, denoted by __a′__(__G__), is the least number of colors in an acyclic edge coloring of __G__. For certain graphs __G__, __a′__(_
## Abstract For __k__ = 1 and __k__ = 2, we prove that the obvious necessary numerical conditions for packing __t__ pairwise edge‐disjoint __k__‐regular subgraphs of specified orders __m__~1~,__m__~2~,… ,__m__~t~ in the complete graph of order __n__ are also sufficient. To do so, we present an edge
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