Vertex separator
= Vertex separator
{wiki}
An $x$-$y$ vertex separator is a set of vertices, excluding $x$ and $y$, whose deletion leaves no path from $x$ to $y$.
= Vertex separator
{wiki}
An $x$-$y$ vertex separator is a set of vertices, excluding $x$ and $y$, whose deletion leaves no path from $x$ to $y$.