Planar graph augmentation problems

  • Goos Kant
  • Hans L. Bodlaender
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 519)


In this paper we investigate the problem of adding a minimum number of edges to a planar graph in such a way that the resulting graph is biconnected and still planar. It is shown that this problem is NP-complete. We present an approximation algorithm for this planar biconnectivity augmentation problem that has performance ratio 3/2 and uses O(n2 log n) time. An O(n3) approximation algorithm with performance ratio 5/4 is presented to make a biconnected planar graph triconnected by adding edges without losing planarity.


Planar Graph Performance Ratio Outgoing Edge Outerplanar Graph Matching Edge 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1991

Authors and Affiliations

  • Goos Kant
    • 1
  • Hans L. Bodlaender
    • 1
  1. 1.Dept. of Computer ScienceUtrecht UniversityUtrechtthe Netherlands

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