Large B_d-free and union-free subfamilies

János Barát, Zoltán Füredi, Ida Kantor +2

For a property $\Gamma$ and a family of sets $\cF$, let $f(\cF,Γ)$ be the size of the largest subfamily of $\cF$ having property $\Gamma$. For a positive integer $m$, let $f(m,\Gamma )$ be the min…