The graph T???C@?K@OA_A_C`S@?QC`O@KKCDBAb__eQG
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: