Yoooooooo again, > it is known that this dimension is equivalent to the chromatic number of > certain hypergraph (hypergraph of incompatible pairs): > http://www.ams.org/mathscinet-getitem?mr=1796000
HMmmm... I am not sure I get the definition of this hypergraph completely, but I am not sure either that I know how to build it. Its edges do not seem very straightforward to list :-/ Nathann -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
