4 search results - page 1 / 1 » The Isomorphism Problem for k-Trees Is Complete for Logspace |
MFCS
2009
Springer
13 years 11 months ago
2009
Springer
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...
FSTTCS
2008
Springer
13 years 5 months ago
2008
Springer
We consider the isomorphism and canonization problem for 3-connected planar graphs. The problem was known to be L -hard and in UL ∩ coUL [TW08]. In this paper, we give a determin...
STACS
2010
Springer
13 years 11 months ago
2010
Springer
The Graph Isomorphism problem restricted to graphs of bounded treewidth or bounded tree distance width are known to be solvable in polynomial time [2],[19]. We give restricted spa...
LICS
2000
IEEE
13 years 9 months ago
2000
IEEE
We prove that several problems concerning congruences on algebras are complete for nondeterministic log-space. These problems are: determining the congruence on a given algebra gen...