Ask Your Question

Plotting fundamental domains of modular subgroups from generators and cusp widths

asked 2012-09-01 08:36:43 +0200

Jimeree gravatar image

I have a number of genus zero, index 24 modular subgroups (some congruence, some not). For each of these subgroups, I have the cusp widths, and a set of generators as explicit 2x2 matrices. How can I use these to plot the fundamental domain for each group? I suspect a lot of this material is in the KFarey package, but I'm having trouble putting it all together.


edit retag flag offensive close merge delete


Try posting to the sage-support google group, you might get some experts that read that list to respond.

benjaminfjones gravatar imagebenjaminfjones ( 2012-09-02 01:02:29 +0200 )edit

1 Answer

Sort by ยป oldest newest most voted

answered 2016-10-01 14:43:09 +0200

John Cremona gravatar image

By issuing the command "search_src("fundamental_domain") I found several examples to follow all from the modular/arithgroup/farey_symbol module so I suggest looking at that.

Probably not a useful answer 4 years later though.

edit flag offensive delete link more

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Question Tools


Asked: 2012-09-01 08:36:43 +0200

Seen: 444 times

Last updated: Oct 01 '16