Fully-Dynamic Recognition Algorithm and Certificate for Directed Cographs

نویسندگان

  • Christophe Crespelle
  • Christophe Paul
چکیده

This paper presents an optimal fully-dynamic recognition algorithm for directed cographs. Given the modular decomposition tree of a directed cograph G, the algorithm supports arc and vertex modification (insertion or deletion) in O(d) time where d is the number of arcs involved in the operation. Moreover, if the modified graph remains a directed cograph, the modular tree decomposition is updated; otherwise, a certificate is returned within the same complexity.

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تاریخ انتشار 2004