= Oriented site percolation
{title2=$p_c^{\mathrm{site}}$}
Independently open vertices of a <directed graph> with common <probability> $p$, and require every vertex of an infinite directed path to be open, including its root. Conditioning the root to be open changes the survival probability by a factor $p$ and does not change the critical probability. This model gives an independent comparison process in the <independent oriented-percolation comparison for the contact process>.
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