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The number of cliques in graphs of given order and size

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 نشر من قبل Vladimir Nikiforov
 تاريخ النشر 2008
  مجال البحث
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Let k_r(n,m) denote the minimum number of r-cliques in graphs with n vertices and m edges. For r=3,4 we give a lower bound on k_r(n,m) that approximates k_r(n,m) with an error smaller than n^r/(n^2-2m). The solution is based on a constraint minimization of certain multilinear forms. In our proof, a combinatorial strategy is coupled with extensive analytical arguments.



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