Asymptotically optimal Kk-packings of dense graphs via fractional Kk-decompositions

  • Authors:
  • Raphael Yuster

  • Affiliations:
  • Department of Mathematics, University of Haifa at Oranim, Tivon, Israel

  • Venue:
  • Journal of Combinatorial Theory Series B
  • Year:
  • 2005

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Abstract

Let H be a fixed graph. A fractional H-decomposition of a graph G is an assignment of nonnegative real weights to the copies of H in G such that for each e ∈ E(G), the sum of the weights of copies of H containing e is precisely one. An H-packing of a graph G is a set of edge disjoint copies of H in G. The following results are proved. For every fixed k 2, every graph with n vertices and minimum degree at least n(1 - 1/9k10) + o(n) has a fractional Kk-decomposition and has a Kk-packing which covers all but o(n2) edges.