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    Planarization of Graphs Embedded on Surfaces

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    Author
    Djidjev, Hristo N.; Venkatesan, Shankar M.
    Date
    June 2, 1995
    Abstract
    A planarizing set of a graph is a set of edges or vertices whose removal leaves a planar graph. It is shown that if G is an n vertex graph of maximum degree d and orientable genus g, then there exists a planarizing set of O(sqrt(dgn)) edges. This result is tight within a constant factor. Similar results are obtained for planarizing vertex sets and for graphs embedded on nonorientable surfaces. Planarizing edge and vertex sets can be found in O(n+g) time if an embedding of G on a surface of genus g is given. We also construct an approximation algorithm that finds an O(sqrt(gn log g)) planarizing vertex set of G in O(n log g) time if no genus g embedding is given as an input.
    Citation
    Djidjev, Hristo N. and Venkatesan, Shankar M.. "Planarization of Graphs Embedded on Surfaces." (1995) https://hdl.handle.net/1911/96456.
    Type
    Technical report
    Citable link to this page
    https://hdl.handle.net/1911/96456
    Rights
    You are granted permission for the noncommercial reproduction, distribution, display, and performance of this technical report in any format, but this permission is only for a period of forty-five (45) days from the most recent time that you verified that this technical report is still available from the Computer Science Department of Rice University under terms that include this permission. All other rights are reserved by the author(s).
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    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
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    Site Map