Local constraints ensuring small representing sets

Paul Erdos, András Hajnal, Zsolt Tuza

Research output: Contribution to journalArticle

5 Citations (Scopus)


A set T is said to cover a set system J if T meets all members of J. We raise the following general problem. Find relations among the natural numbers p, r, s, t, that imply the truth of the following statement: If J. is an r-uniform set system such that each of its subsystems on at most p elements can be covered with an s-element set, then J. can be covered with a t-element set. Here we investigate the case s = 1.

Original languageEnglish
Pages (from-to)78-84
Number of pages7
JournalJournal of Combinatorial Theory, Series A
Issue number1
Publication statusPublished - Sep 1991


ASJC Scopus subject areas

  • Theoretical Computer Science
  • Discrete Mathematics and Combinatorics
  • Computational Theory and Mathematics

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