igraph Reference Manual
2. Other set-like operators
2.1.
igraph_difference
— Calculate the difference of two graphs
2.2.
igraph_complementer
— Create the complementer of a graph
2.3.
igraph_compose
— Calculates the composition of two graphs
<< 1.6.
igraph_intersection_many
— The intersection of more than two graphs.
2.1.
igraph_difference
— Calculate the difference of two graphs >>