Hello, After reading the doc string of "is_isomorphic" I thought that for two edge-labelled graphs g,h, g.is_isomorphic(h, edge_labels=True) would be true exactly when there is a label preserving isomorphism between the two graphs. However:
sage: foo.edges() [(0, 1, 2), (0, 2, 1), (2, 3, 3)] sage: bar.edges() [(0, 1, 1), (0, 2, 2), (2, 3, 3)] sage: bar.is_isomorphic(foo, edge_labels = True) True So what is the effect of "edge_labels = True"? Or is this a bug? Is there a way in sage to check whether two edge-labelled trees are isomorphic? TIA, Nikos --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
