Light Spanner and Monotone Tree

@article{Hung2012LightSA,
  title={Light Spanner and Monotone Tree},
  author={Hao-Hsiang Hung},
  journal={ArXiv},
  year={2012},
  volume={abs/1207.3807}
}
In approximation algorithm design, light spanners has applications in graph-metric problems such as metric TSP (the traveling salesman problem) [8] and others [3]. We have developed an efficient algorithm in [9] for light spanners in bounded pathwidth graphs, based on an intermediate data structure called monotone tree. In this paper, we extended the results to include bounded catwidth graphs. 

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