Kneser Representations of Graphs

نویسندگان

  • Peter Hamburger
  • Attila Pór
  • Matt Walsh
چکیده

The Kneser graph Kn:k for positive integers n ≥ k has as its vertex set the k-element subsets of some n-set, with disjoint sets being adjacent. Every finite simple graph can be found as an induced subgraph of some Kneser graph; this can be viewed as a way of representing graphs by labelling their vertices with sets. We explore questions of finding the smallest representation (both in terms of n, the size of the label set, and k, the size of the labels) of certain classes of graphs and draw connections to related problems.

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عنوان ژورنال:
  • SIAM J. Discrete Math.

دوره 23  شماره 

صفحات  -

تاریخ انتشار 2009