Product graph representations

Product graph representations
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DOI:
10.1002/jgt.3190160508
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发表时间:
1992
期刊:
J. Graph Theory
影响因子:
--
通讯作者:
T. Feder
T. Feder
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--
文献类型:
--
作者:
T. Feder

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本文研究了图的卡图积的子图的一类正则表示。这个层次结构开始于等距表示,包括2-等距表示,并结束于卡氏素分解。我们表明,所有这三个表示可以在O(nm)的时间使用O(m)的空间,具有n个顶点和m条边的图。该算法有立即并行版本,使用n3处理器和运行在O(log 2n)的时间。© 1929 John Wiley & Sons,Inc.
We study a hierarchy of canonical representations of grpahs as subgraphs of cartesian products of graphs. This hierarchy starts with the isometric representation, includes the 2-isometric represnetation, and ends with the cartesian prime factorization. We show that all three representations can be obtained in O(nm) time using O(m) space, for graphs with n vertices and m edges. The algorithms have immediate parallel versions that use n3 processors and run in O(log2n) time. © 1929 John Wiley & Sons, Inc.