Finding even cycles even faster

Extended abstract
  • Raphael Yuster
  • Uri Zwick
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 820)


We describe efficient algorithms for finding even cycles in undirected graphs. Our main results are the following:
  • For every k≥2, we can, in O(V2) time, decide whether an undirected graph G=(V, E) contains a simple cycle of length 2k and output such a cycle if it does.

  • We can, again in O(V2) time, find a shortest even cycle in an undirected graph G=(V, E).


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Copyright information

© Springer-Verlag Berlin Heidelberg 1994

Authors and Affiliations

  • Raphael Yuster
    • 1
  • Uri Zwick
    • 1
  1. 1.Department of Computer ScienceTel Aviv UniversityTel AvivIsrael

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