The crossing number of the circular graph
β Scribed by Dengju Ma; Han Ren; Junjie Lu
- Book ID
- 108113550
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 143 KB
- Volume
- 304
- Category
- Article
- ISSN
- 0012-365X
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π SIMILAR VOLUMES
Let G be a graph on n vertices and m edges. The book crossing number of G is defined as the minimum number of edge crossings when the vertices of G are placed on the spine of a k-page book and edges are drawn on pages, such that each edge is contained by one page. Our main results are t w o polynomi
## Abstract This article studies the circular chromatic number of a class of circular partitionable graphs. We prove that an infinite family of circular partitionable graphs __G__ has $\chi\_ c (G) = \chi(G)$. A consequence of this result is that we obtain an infinite family of graphs __G__ with th
In this article, we consider the circular chromatic number Ο c (G) of series-parallel graphs G. It is well known that series-parallel graphs have chromatic number at most 3. Hence, their circular chromatic numbers are at most 3. If a seriesparallel graph G contains a triangle, then both the chromati