Note: Linear spaces with small generated subspaces

  • Authors:
  • Peter Dukes;Alan C. H. Ling

  • Affiliations:
  • Department of Mathematics and Statistics, University of Victoria, Victoria, BC V8W 3R4, Canada;Department of Computer Science, University of Vermont, Burlington, Vermont 05405, USA

  • Venue:
  • Journal of Combinatorial Theory Series A
  • Year:
  • 2009

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Abstract

The dimension of a linear space is the maximum positive integer d such that any d of its points generate a proper subspace. Given n, d, s, we consider linear spaces on n points such that any d points generate subspaces of size at most s. Certain design-theoretic constructions and applications are investigated. In particular, one consequence is the existence of proper n-edge-colourings of both K"n"+"1 (for n odd) and K"n","n with a constant bound on the length of two-colored cycles.