Re: [sage-support] Cayley graph of PGL(2,q)

2014-04-07 Thread Oren Becker
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? On Monday, April

Re: [sage-support] Cayley graph of PGL(2,q)

2014-04-07 Thread David Joyner
On Mon, Apr 7, 2014 at 11:36 AM, Oren Becker wrote: > I would like to compute the spectrum of a certain Cayley graph on PGL(2,q), > for a certain prime power q. > > I created the generators of the graph as elements of GL(2,q). > Why don't you redo your steps but change this step to use PGL inste

[sage-support] Cayley graph of PGL(2,q)

2014-04-07 Thread Oren Becker
I would like to compute the spectrum of a certain Cayley graph on PGL(2,q), for a certain prime power q. I created the generators of the graph as elements of GL(2,q). Now, how do I get the spectrum of the Cayley graph on PGL(2,q)? I thought to first create the Cayley graph using PGL.cayley_grap