Hello! I have a few questions concerning GAP interface in Sage 7.x.
I have a permutation group G acting on a set S and I would like to compute the representatives of the orbits of G acting on k-sets of S. I recall that a while ago I could do the following (as seen on this example http://ask.sagemath.org/question/9652/orbits-on-group-actions-acting-on-sets/?answer=14470#post-id-14470) ==== sage: g=SymmetricGroup(7) sage: gap("Orbits("+str(g._gap_())+","+str(tuples([1..7],2))+",OnTuples)") ==== and yes, it works in Sage 6.x. However, in Sage 7.x one gets the following error ==== TypeError: Gap terminated unexpectedly while reading in a large line: Gap produced error output Error, Permutation: cycles must be disjoint and duplicate-free ==== Given this, I have the following questions - What is the proper way to call gap in Sage 7x t obtain the orbits of a group G acting on k-sets of a set S? - (GAP question) I recall there is a way to return only the representatives of the orbits? Anyone happens to recall the right GAP command for that? - Does it make sense to add an option for various group actions to Sage directly (as is already done for specific orbits ) ? Best, Jernej -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
