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Displaying similar documents to “Methods of destroying the symmetries of a graph.”

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On the proper intervalization of colored caterpillar trees

Carme Àlvarez, Maria Serna (2009)

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This paper studies the computational complexity of the problem (), when the input graph is a colored caterpillar, parameterized by hair length. In order prove our result we establish a close relationship between the and a graph layout problem the (). We show a dichotomy: the and the are NP-complete for colored caterpillars of hair length 2, while both problems are in P for colored caterpillars of hair length 2. For the hardness results we provide a reduction from the , while the...