The graph T??CA?_CCOG_`AH@BG?D_oo?gg@cBAOg_Dao
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: