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On boolean characterizations of planarity and planar embeddings of graphs

✍ Scribed by Yanpei Liu


Book ID
112713120
Publisher
Springer US
Year
1990
Tongue
English
Weight
391 KB
Volume
24
Category
Article
ISSN
0254-5330

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Robertson and Seymour conjectured that the treewidth of a planar graph and the treewidth of its geometric dual di er by at most one. Lapoire solved the conjecture in the a rmative, using algebraic techniques. We give here a much shorter proof of this result.