Canonisation and Definability for Graphs of Bounded Rank Width
Canonisation and Definability for Graphs of Bounded Rank Width
复制标题
有界秩宽图的规范化和可定义性
DOI:
10.1109/lics.2019.8785682
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
D. Neuen
中科院分区:
文献类型:
--
作者:
M. Grohe;D. Neuen
We prove that the combinatorial Weisfeiler-Leman algorithm of dimension (3k+4) is a complete isomorphism test for the class of all graphs of rank width at mostk. Rank width is a graph invariant that, similarly to tree width, measures the width of a certain style of hierarchical decomposition of graphs; it is equivalent to clique width.It was known that isomorphism of graphs of rank widthkis decidable in polynomial time (Grohe and Schweitzer, FOCS 2015), but the best previously known algorithm has a running timenf(k)for a non-elementary functionf. Our result yields an isomorphism test for graphs of rank widthkrunning in timenO(k). Another consequence of our result is the first polynomial-time canonisation algorithm for graphs of bounded rank width.Our second main result is that fixed-point logic with counting captures polynomial time on all graph classes of bounded rank width.
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DOI:
--
发表时间:
2000
期刊:
Symposium on the Theory of Computing
影响因子:
--
作者:
Martin Grohe
通讯作者:
Martin Grohe
DOI:
10.1145/3382082
发表时间:
2020
期刊:
ACM Transactions on Algorithms (TALG)
影响因子:
--
作者:
M. Grohe;D. Neuen;P. Schweitzer;D. Wiebking
通讯作者:
D. Wiebking
影响因子:
0.8
作者:
Martin Grohe;Pascal Schweitzer
通讯作者:
Pascal Schweitzer
DOI:
10.1109/lics.2010.42
发表时间:
2010
期刊:
2010 25th Annual IEEE Symposium on Logic in Computer Science
影响因子:
--
作者:
B. Laubner
通讯作者:
B. Laubner
DOI:
10.1007/10692760_1
发表时间:
1998-06
期刊:
--
影响因子:
--
作者:
B. Courcelle;J. Makowsky;Udi Rotics
通讯作者:
B. Courcelle;J. Makowsky;Udi Rotics