Interval Graphs: Canonical Representations in Logspace
Interval Graphs: Canonical Representations in Logspace
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区间图:对数空间中的规范表示
DOI:
10.1137/10080395x
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
O. Verbitsky
中科院分区:
文献类型:
--
作者:
J. Köbler;S. Kuhnert;B. Laubner;O. Verbitsky
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.
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DOI:
10.1109/lics.2010.42
发表时间:
2010
期刊:
2010 25th Annual IEEE Symposium on Logic in Computer Science
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