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JCSS
2010
77views more  JCSS 2010»
13 years 5 months ago
Isomorphism and canonization of tournaments and hypertournaments
We give a polynomial-time oracle algorithm for Tournament Canonization that accesses oracles for Tournament Isomorphism and Rigid-Tournament Canonization. Extending the Babai-Luks ...
Vikraman Arvind, Bireswar Das, Partha Mukhopadhyay
CSR
2008
Springer
13 years 9 months ago
A Logspace Algorithm for Partial 2-Tree Canonization
Abstract. We show that partial 2-tree canonization, and hence isomorphism testing for partial 2-trees, is in deterministic logspace. Our algorithm involves two steps: (a) We exploi...
Vikraman Arvind, Bireswar Das, Johannes Köble...
GD
2009
Springer
14 years 1 days ago
Leftist Canonical Ordering
Canonical ordering is an important tool in planar graph drawing and other applications. Although a linear-time algorithm to determine canonical orderings has been known for a while...
Melanie Badent, Michael Baur, Ulrik Brandes, Sabin...
22
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MOC
2010
13 years 2 months ago
Computing a lower bound for the canonical height on elliptic curves over number fields
Computing a lower bound for the canonical height is a crucial step in determining a Mordell
Thotsaphon Thongjunthug
ECCC
2011
205views ECommerce» more  ECCC 2011»
13 years 2 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