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ECCC
2011
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12 years 11 months ago
Graphs of Bounded Treewidth can be Canonized in AC1
In recent results the complexity of isomorphism testing on graphs of bounded treewidth is improved to TC1 [GV06] and further to LogCFL [DTW10]. The computation of canonical forms ...
Fabian Wagner
MFCS
2009
Springer
13 years 11 months ago
The Isomorphism Problem for k-Trees Is Complete for Logspace
Abstract. We show that k-tree isomorphism can be decided in logarithmic space by giving a logspace canonical labeling algorithm. This improves over the previous StUL upper bound an...
Johannes Köbler, Sebastian Kuhnert