It seems to be an issue with the conversion between Sage's elements of CyclotomicField(3) and GAP's version of that field.
Franco, do you know? On Thu, Mar 26, 2009 at 12:41 AM, jerome.p.lefeb...@gmail.com <jerome.p.lefeb...@gmail.com> wrote: > > Hello, > > I've been trying to use Sage to play around with representation > theory, but I'm running into trouble when dealing with characters. In > particular, I can't seem to build any character with complex values. > So, for example, I'm trying to build the irreducible characters for a > cyclic subgroup of order 3 in A_4. > > H = AlternatingGroup(4) > g = H.list()[1] > K = H.subgroup([g]) > > # All integers works great > c = K.character([1,1,1]) > > # It doesn't seem to work with elements coming from anywhere else > # for example > zeta2 = e^((I*pi*2)/3) > c = K.character([1,zeta2,zeta2**2]) > > # Or from an other source; > k.<z> = NumberField(x^2+x+1) > zeta2 = k.roots_of_unity()[3] > c = K.character([1,zeta2,zeta2**2]) > > Both of these will both produce errors. > > I'm using Sage 3.4. Any ideas? > > Thank you, > Jerome > > > > --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
