Hi Everyone, I'm getting what I perceive to be an error when I compute some spaces of modular symbols mod 3. (Probably the same phenomenon occurs mod 2.) Specifically:
sage: N=7*13 sage: for l in primes(20): ... ModularSymbols(Gamma0(N),2,base_ring=GF(l)).cuspidal_submodule().dimension() 14 17 14 14 14 14 14 14 The genus of X_0(91) is 7, so I expected to see a string of 14's. The 17 stands out like a sore thumb. Actually, I get an analogous error if I remove "cuspidal_submodule": the 14's become 17's and the 17 becomes a 20. The consistent increment of 3 has to do with the fact that there are four cusps. Thanks in advance! Best, Ken -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
