The graph T???C@?_P_D?@_d?HOQBGGi?K`I_p@Gk?QDO
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: