The graph T???C@?GC_B?@_B?kO?hO_e_gH_eH@I_`GsG
Unembeddable subgraph
The graph
IpD?GUbV?
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: