Applications of the regularity lemma for uniform hypergraphs

  • Authors:
  • Vojtě/ch Rö/dl;Jozef Skokan

  • Affiliations:
  • Department of Mathematics and Computer Science, Emory University, Atlanta, Georgia, 30322;Department of Mathematics, MC-382, University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801/ and Instituto de Matemá/tica e Estatí/stica, Universidade de Sã/o Paulo, Brazil

  • Venue:
  • Random Structures & Algorithms
  • Year:
  • 2006

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Abstract

In this article we discuss several combinatorial problems that can be addressed by the Regularity Method for hypergraphs. Based on the recent results of Nagle, Schacht, and the authors, we give here solutions to these problems.In particular, we prove the following: Let ℱ be a k-uniform hypergraph on t vertices and suppose an n-vertex k-uniform hypergraph ℋ contains only o(nt) copies of ℱ. Then one can delete o(nk) edges of ℋ to make it ℱ-free.Similar results were recently obtained by W. T. Gowers. © 2005 Wiley Periodicals, Inc. Random Struct. Alg., 2006