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Randomly removing g handles at once

Published: 08 June 2009 Publication History

Abstract

It was shown in [Indyk-Sidiropoulos 07] that any orientable graph of genus g can be probabilistically embedded into a graph of genus g-1 with constant distortion. Removing handles one by one gives an embedding into a distribution over planar graphs with distortion 2O(g). By removing all $g$ handles at once, we present a probabilistic embedding with distortion O(g2) for both orientable and non-orientable graphs. Our result is obtained by showing that the minimum-cut graph of [Erickson-HarPeled 04] has low dilation, and then randomly cutting this graph out of the surface using the Peeling Lemma from [Lee-Sidiropoulos 08].

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    cover image ACM Conferences
    SCG '09: Proceedings of the twenty-fifth annual symposium on Computational geometry
    June 2009
    426 pages
    ISBN:9781605585017
    DOI:10.1145/1542362
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Published: 08 June 2009

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    Author Tags

    1. bounded genus graphs
    2. embeddings
    3. planar graphs
    4. probabilistic approximation

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