Discrete Mathematics & Theoretical Computer Science (Aug 2008)

Extremal K (s,t)-free bipartite graphs

  • C. Balbuena,
  • P. Garcia-Vazquez,
  • X. Marcote,
  • J.C. Valenzuela

Journal volume & issue
Vol. 10, no. 3

Abstract

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In this paper new exact values of the Zarankiewicz function z(m,n;s,t) are obtained assuming certain requirements on the parameters. Moreover, all the corresponding extremal graphs are characterized. Finally, an extension of this problem to 3-partite graphs is studied.