The graph T???C@?K@OA_A_GcP?SI?BBBOO_LAbBO?RE@
Unembeddable subgraph
The graph
It?IQGiDO
is a subgraph of this graph. It is not embeddable. Hence, this
graph is not embeddable either. One possible monomorphism
of the unembeddable graph into this one, is given by: