Lower bounding the Folkman numbers $F_v(a_1,...,a_s;m-1)$

Aleksandar Bikov, Nedyalko Nenov

For a graph $G$ the expression $G\stackrel{v}{\to }(a_1,...,a_s)$ means that for every $s$-coloring of the vertices of $G$ there exists $i\in \{1,...,s\}$ such that th…