The graph T????A?oB?E?B?agOiAc_QA_`g@KH?qI?SaS
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: