Hi all, I have been trying to redraw these graphs so I can determine if any of them are isomorphic to each other.
The graphs: ImageShack® - Online Photo and Video Hosting
So there are 6 pairs to look at but I can't redraw them in such a way as to determine if any are isomorphic to one another. I think maybe the second and third are isomorphic but I don't have any drawing to prove it.
Thanks in advance for help help given.