Beschrijving
In this monograph, we consider natural operations on directed graphs. And we find the connections between our operations on graphs and the groupoid-perations on \
In this monograph, we consider natural operations on directed graphs. And we find the connections between our operations on graphs and the groupoid-perations on \
In this monograph, we consider natural operations on directed graphs. And we find the connections between our operations on graphs and the groupoid-perations on \