On 2014-04-07, Oren Becker <oren.bec...@gmail.com> wrote: > My steps created matrices. The group PGL is implemented as a group of > permutations. > > I can make my question more accurate: > > I have a (symmetric) set of 2x2 matrices S over Fq. How can I find the > spectrum of the Cayley graph of PGL(2,q) with respect to the set of > generators S?
this is easy to do in GAP using the GRAPE package (part of gap_packages spkg) Use GAP's functionality to convert GL into PGL (you can make GL act on lines, as a permutation group), then call CayleyGraph. (you then can import the resulting graph into Sage using the interface with GAP and compute the eigenvalues) Should you need more details to implement this plan, please ask... HTH, Dmitrii -- 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 sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
