## Abstract We are interested in the relation between the pathwidth of a biconnected outerplanar graph and the pathwidth of its (geometric) dual. Bodlaender and Fomin [3], after having proved that the pathwidth of every biconnected outerplanar graph is always at most twice the pathwidth of its (geo
Augmenting Outerplanar Graphs
β Scribed by Goos Kant
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 269 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0196-6774
No coin nor oath required. For personal study only.
β¦ Synopsis
In this paper, we show that for outerplanar graphs G the problem of augmenting G by adding a minimum number of edges such that the augmented graph GΠ is planar and bridge-connected, biconnected, or triconnected can be solved in linear time and space. It is also shown that augmenting a biconnected outerplanar graph to a maximal outerplanar graph while minimizing the maximum degree can be achieved in polynomial time. These augmentation problems arise in the area of drawing outerplanar graphs.
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