A Sperner-Type Theorem and Qualitative Independence

نویسندگان

  • János Körner
  • Gábor Simonyi
چکیده

We determine the asymptotics of the largest family { C;} ~ 1 of subsets of an n-set with the property that for some bipartitions C; =A; u B; of the C/s none of the inclusions A; c C 1 , B; c C 1 occurs. Our construction implies a new lower bound on the size of qualitatively independent partition systems in the Renyi sense.

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عنوان ژورنال:
  • J. Comb. Theory, Ser. A

دوره 59  شماره 

صفحات  -

تاریخ انتشار 1992