arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1801.07097math.CO
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将5-可平面图嵌入到三个页面中

Embedding 5-planar graphs in three pages

Xiaxia Guan, Weihua Yang

摘要:

图$G$的\emph{book-embedding}是$G$的顶点沿着书脊的嵌入,以及$G$的边在页面上的嵌入,使得同一页面上没有两条边相交。其中可以嵌入图的最小页数被称为\emph{page number}。图的书嵌入在若干技术应用中可能是重要的,例如,并行堆栈排序,容错处理器阵列设计,以及超大规模集成电路(VLSI)应用的布局问题。Bernhart和Kainen首先考虑了可平面图的书嵌入,并证明了它的页数可以任意大[JCT,1979,320-331]。Heath [FOCS 84]发现可平面图允许七页书嵌入。后来,Yannakakis在[STOC 86]中证明了四页是可平面图的必要和充分条件。最近,Bekos等人。[STACS 14]描述了4-可平面图的两页书嵌入的$O(n^{2})$时间算法。本文利用$O(n^{2})$时间算法将5-可平面图嵌入到一本三页的书中。

英文摘要:

A \emph{book-embedding} of a graph $G$ is an embedding of vertices of $G$ along the spine of a book, and edges of $G$ on the pages so that no two edges on the same page intersect. the minimum number of pages in which a graph can be embedded is called the \emph{page number}. The book-embedding of graphs may be important in several technical applications, e.g., sorting with parallel stacks, fault-tolerant processor arrays design, and layout problems with application to very large scale integration (VLSI). Bernhart and Kainen firstly considered the book-embedding of the planar graph and conjectured that its page number can be made arbitrarily large [JCT, 1979, 320-331]. Heath [FOCS84] found that planar graphs admit a seven-page book embedding. Later, Yannakakis proved that four pages are necessary and sufficient for planar graphs in [STOC86]. Recently, Bekos et al. [STACS14] described an $O(n^{2})$ time algorithm of two-page book embedding for 4-planar graphs. In this paper, we embed 5-planar graphs into a book of three pages by an $O(n^{2})$ time algorithm.

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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