I don't think these have been implemented yet. Over to you! You may like to join sage-nt if you are serious.
John Cremona On Apr 20, 9:45 am, jtyard <[email protected]> wrote: > er.. in Igusa's theta function book. > > On Apr 20, 10:04 am, jtyard <[email protected]> wrote: > > > > > > > > > Does anyone know how to use Sage for computations with congruence > > subgroups other than Gamma, Gamma0, Gamma1 and GammaH? I need the > > group Gamma(n,2n) = \{gamma in Gamma(n) : 2n | ab, 2n | cd}, as > > defined in Ihara's theta function book, for odd n. -- To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
