The problem seems to be in the _weak_invariant() method: if N is as defined below, and M is the matroid in the catalog, we get:
sage: (N._weak_invariant(), M._weak_invariant()) (-7774345140401701701, -4449946732485601636) That's when the isomorphism test decides these guys are different. --Stefan -- --- You received this message because you are subscribed to the Google Groups "sage-matroid" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
