Testing Outerplanarity of Bounded Degree Graphs
Testing Outerplanarity of Bounded Degree Graphs
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DOI:
10.1007/s00453-014-9897-1
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发表时间:
2010-09
期刊:
影响因子:
1.1
通讯作者:
Yuichi Yoshida;Hiro Ito
中科院分区:
文献类型:
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作者:
Yuichi Yoshida;Hiro Ito
We present an efficient algorithm for testing outerplanarity of graphs in the bounded-degree model. In this model, given a graphwith degree bound, we should distinguish with high probability the case thatis outerplanar from the case that modifying at least an-fraction of the edge set is necessary to makeouterplanar. Our algorithm runs in time polynomial inandonly. To achieve the time complexity, we exploit the tree-like structure inherent to an outerplanar graph using the microtree/macrotree decomposition of a tree. As a corollary, we show that the property of being a cactus is testable in time polynomial inand.