Maximum Independent Set in 2-Direction Outersegment Graphs

  • Holger Flier
  • Matúš Mihalák
  • Peter Widmayer
  • Anna Zych
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6986)


An outersegment graph is the intersection graph of line-segments lying inside a disk and having one end-point on the boundary of the disk. We present a polynomial-time algorithm for the problem of computing a maximum independent set in outersegment graphs where every segment is either horizontally or vertically aligned. We assume that a geometric representation of the graph is given as input.


Polynomial Time Maximum Clique Intersection Graph Straight Line Segment Vertical Segment 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Holger Flier
    • 1
  • Matúš Mihalák
    • 1
  • Peter Widmayer
    • 1
  • Anna Zych
    • 1
  1. 1.Institute of Theoretical Computer ScienceETH ZürichSwitzerland

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