A 1.8 approximation algorithm for augmenting edge-connectivity of a graph from 1 to 2

Guy Even; Jon Feldman; Guy Kortsarz; Zeev Nutov

doi:10.1145/1497290.1497297

A 1.8 approximation algorithm for augmenting edge-connectivity of a graph from 1 to 2

Guy Even, Jon Feldman, Guy Kortsarz, Zeev Nutov

Computer Science

Research output: Contribution to journal › Article › peer-review

Abstract

We present a 1.8-approximation algorithm for the following NP-hard problem: Given a connected graph G = (V, E) and an edge set E on V disjoint to E, find a minimum-size subset of edges F ⊆ E such that (V, E ∪ F) is 2-edge-connected. Our result improves and significantly simplifies the approximation algorithm with ratio 1.875 + ε of Nagamochi.

Original language	English
Article number	21
Journal	ACM Transactions on Algorithms
Volume	5
Issue number	2
DOIs	https://doi.org/10.1145/1497290.1497297
State	Published - 1 Mar 2009

Keywords

Approximation algorithms
Connectivity
Graphs

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10.1145/1497290.1497297

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A 1.8 approximation algorithm for augmenting edge-connectivity of a graph from 1 to 2

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