An efficient parallel algorithm for planarity
Journal of Computer and System Sciences - 27th IEEE Conference on Foundations of Computer Science October 27-29, 1986
Parallel recognition of the consecutive ones property with applications
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A logspace algorithm for tree canonization (extended abstract)
STOC '92 Proceedings of the twenty-fourth annual ACM symposium on Theory of computing
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The graph isomorphism problem: its structural complexity
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An Efficient Parallel Recognition Algorithm For Bipartite-Permutation Graphs
IEEE Transactions on Parallel and Distributed Systems
Efficient Parallel Algorithms for Chordal Graphs
SIAM Journal on Computing
The isomorphism problem for directed path graphs and for rooted directed path graphs
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Counting quantifiers, successor relations, and logarithmic space
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On testing consecutive-ones property in parallel
Discrete Applied Mathematics - Special volume on computational molecular biology DAM-CMB series volume 2
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A Linear Time Algorithm for Deciding Interval Graph Isomorphism
Journal of the ACM (JACM)
Journal of the ACM (JACM)
Graph isomorphism and identification matrices: sequential algorithms
Journal of Computer and System Sciences
Linear-Time Representation Algorithms for Proper Circular-Arc Graphs and Proper Interval Graphs
SIAM Journal on Computing
A Fully Dynamic Algorithm for Recognizing and Representing Proper Interval Graphs
SIAM Journal on Computing
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GD '96 Proceedings of the Symposium on Graph Drawing
PC trees and circular-ones arrangements
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Algorithmic Graph Theory and Perfect Graphs (Annals of Discrete Mathematics, Vol 57)
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Recognizing and representing proper interval graphs in parallel using merging and sorting
Discrete Applied Mathematics
Undirected connectivity in log-space
Journal of the ACM (JACM)
Planar Graph Isomorphism is in Log-Space
CCC '09 Proceedings of the 2009 24th Annual IEEE Conference on Computational Complexity
The Isomorphism Problem for k-Trees Is Complete for Logspace
MFCS '09 Proceedings of the 34th International Symposium on Mathematical Foundations of Computer Science 2009
Journal of Computer and System Sciences
Simple geometrical intersection graphs
WALCOM'08 Proceedings of the 2nd international conference on Algorithms and computation
Capturing Polynomial Time on Interval Graphs
LICS '10 Proceedings of the 2010 25th Annual IEEE Symposium on Logic in Computer Science
Testing graph isomorphism in parallel by playing a game
ICALP'06 Proceedings of the 33rd international conference on Automata, Languages and Programming - Volume Part I
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We present a logspace algorithm for computing a canonical labeling, in fact, a canonical interval representation, for interval graphs. To achieve this, we compute canonical interval representations of interval hypergraphs. This approach also yields a canonical labeling of convex graphs. As a consequence, the isomorphism and automorphism problems for these graph classes are solvable in logspace. For proper interval graphs we also design logspace algorithms computing their canonical representations by proper and by unit interval systems.