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COMPETITION INDICES OF STRONGLY CONNECTED DIGRAPHS

  • Cho, Han-Hyuk (Department of Mathematics Education Seoul National University) ;
  • Kim, Hwa-Kyung (Department of Mathematics Education Sangmyung University)
  • Received : 2009.10.23
  • Published : 2011.05.31

Abstract

Cho and Kim [4] and Kim [6] introduced the concept of the competition index of a digraph. Cho and Kim [4] and Akelbek and Kirkland [1] also studied the upper bound of competition indices of primitive digraphs. In this paper, we study the upper bound of competition indices of strongly connected digraphs. We also study the relation between competition index and ordinary index for a symmetric strongly connected digraph.

References

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  4. H. H. Cho and H. K. Kim, Competition indices of digraphs, Proceedings of workshop in combinatorics (2004), 99-107.
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