On Sat, Mar 31, 2012 at 10:40 PM, Aleksandar Makelov <amake...@college.harvard.edu> wrote: > On a similar note, I'm now implementing a tiny project to handle > character tables by manual input from the user. > This was *motivated* by a recent problem set in which one of the > problems was about decomposing 4 representations of S4 into > irreducible ones, which takes about 300 multiplications and 100 > additions when done by hand (...). It will allow people to manually > input the cardinalities of conjugacy classes and a bunch of characters > of irreducible representations and then mess around with them (take > direct sums, tensor them, take duals, decompose, check for > irreducibility,...). It will probably make good use of the complex > numbers already in sympy - but is it going to be a valuable addition > to the library? (I mean, there's no representation theory in sympy > (yet))
This could be very useful. GAP does a great job with characters, so most people would just use GAP for that though. Still, some functionality would be nice. Ondrej wrote some notes on group theory here: http://theoretical-physics.net/dev/src/math/groups.html Being able to do those in SymPy would be nice. > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To post to this group, send email to sympy@googlegroups.com. > To unsubscribe from this group, send email to > sympy+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/sympy?hl=en. > -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to sympy@googlegroups.com. To unsubscribe from this group, send email to sympy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.
