Originally Posted by

**Juventus** Hi Roninpro,

Yes I had already read about it on Wikipedia. Actually, I have been doing a lot of research on the G.I.P. and I am at a point where I am past drawing graphs to compare 2 graphs as I think that it is a futile approach.

Looking at it from an objective standpoint, because I am not a mathematician, I think that the answer lies elsewhere then trying to draw 2 graphs. Furthermore, most graph invariants (vectors, arcs, eigenvalues, etc......) are very time consuming and are only a necessary but insufficient condition of proof. It seems to me that the subject of the G.I.P. has been beaten to death pretty much with the same approach over and over for the longest period of time and if you always do what you have done you will always get what you have gotten (A. E.) !!! So the answer obviously lies elsewhere, which is what I am searching.