Map Pack 3
Planar graphs are so boring.IB_ wrote:QUOTE (IB_ @ Apr 25 2010, 12:42 AM) I know, but people really hate the crossing alephs with a passion.
May I submit to you the Petersen graph?
Minimal crossing number is 2, but I'm partial to this representation with 3 crossings. Some other representations here.
Diameter of this graph is 2, so it needs a low-sign middle sector (purple middle sector in the previous link).
Globemaster_III wrote:QUOTE (Globemaster_III @ Jan 11 2018, 11:27 PM) as you know i think very little of cashto, cashto alway a flying low pilot, he alway flying a trainer airplane and he rented