On 2013-07-12, darijgrinberg <darijgrinb...@gmail.com> wrote: > ------=_Part_13473_7743396.1373672589533 > Content-Type: text/plain; charset=ISO-8859-1 > > Hello! > > While trying to do computations in symmetric group algebras today, I was > shocked by the fact that Sage uses the convention that a product \pi \psi > of two permutations \pi and \psi is the permutation that applies \pi first > and \psi later. In my opinion, this convention is highly nonstandard (I > only saw it in GAP and in Herstein's older books; nowadays most > mathematicians use the opposite convention without even mentioning it, and > even Herstein stopped pushing the other way) and does not match the fact > that permutations, like any functions, are applied to elements from the > left in Sage (as opposed to GAP, which at least is consequent in that > permutations act from the right).
IMHO it's a not as obsolete convention as you seem to imply; isn't e.g. Magma using the same convention as GAP? Not mentioning a lot of group theory literature... -- 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/groups/opt_out.
