On Wed, Jun 19, 2013 at 3:53 PM, Mary Clark <mary.spritel...@gmail.com> wrote: > >> Just a question on terminology: >> Are you talking about general commutation relations or just those for the >> standard lie algebra generators? > > > Sorry, but could you clarify what you mean? For instance, what I'm saying > is that su(2), for example, has a basis consisting of 3 elements, say u1, u2 > and u3, and we know that [u1,u2] = 2(u3). But, for su(n) which has a basis > of n^2 - n elements, I can't find an algorithm or anything saying that [u_i, > u_j ] = f u_k for some constant f.
I think I see what you mean now. They definitely exist. I have my books on this stuff at work but googling I found this: http://phyweb.lbl.gov/~rncahn/www/liealgebras/texall.pdf Are the relations you want on page 48? > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sympy+unsubscr...@googlegroups.com. > To post to this group, send email to sympy@googlegroups.com. > Visit this group at http://groups.google.com/group/sympy. > For more options, visit https://groups.google.com/groups/opt_out. > > -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sympy+unsubscr...@googlegroups.com. To post to this group, send email to sympy@googlegroups.com. Visit this group at http://groups.google.com/group/sympy. For more options, visit https://groups.google.com/groups/opt_out.
