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arXiv · 1608.02515

A note on the Survivable Network Design Problem

Chandra Chekuri·Thapanapong Rukkanchanunt
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Abstract

In this note we consider the survivable network design problem (SNDP) in undirected graphs. We make two contributions. The first is a new counting argument in the iterated rounding based 2-approximation for edge-connectivity SNDP (EC-SNDP) originally due to Jain. The second is to make some additional connections between hypergraphic version of SNDP introduced by Zhao, Nagamochi and Ibaraki and edge and node-weighted versions of EC-SNDP and element-connectivity SNDP (Elem-SNDP). One useful consequence of this connection is a 2-approximation for Elem-SNDP that avoids the use of set-pair based relaxation and analysis.

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Chandra Chekuri, Thapanapong Rukkanchanunt. 2016-08-08. A note on the Survivable Network Design Problem. https://arxiv.org/abs/1608.02515

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