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arXiv · 1410.4395

Minimum Linear Arrangement of Series-Parallel Graphs

Martina Eikel·Christian Scheideler·Alexander Setzer
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Abstract

We present a factor $14D^2$ approximation algorithm for the minimum linear arrangement problem on series-parallel graphs, where $D$ is the maximum degree in the graph. Given a suitable decomposition of the graph, our algorithm runs in time $O(|E|)$ and is very easy to implement. Its divide-and-conquer approach allows for an effective parallelization. Note that a suitable decomposition can also be computed in time $O(|E|\log{|E|})$ (or even $O(\log{|E|}\log^*{|E|})$ on an EREW PRAM using $O(|E|)$ processors). For the proof of the approximation ratio, we use a sophisticated charging method that uses techniques similar to amortized analysis in advanced data structures. On general graphs, the minimum linear arrangement problem is known to be NP-hard. To the best of our knowledge, the minimum linear arrangement problem on series-parallel graphs has not been studied before.

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Martina Eikel, Christian Scheideler, Alexander Setzer. 2014-10-16. Minimum Linear Arrangement of Series-Parallel Graphs. https://arxiv.org/abs/1410.4395

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