The $(p,q,r)$ triangle group is the group with presentation $[a,b | a^p=b^q=(ab)^r=1]$. Has anyone classified the (infinite) quotients of the $(2,4,4)$ triangle group?

Take the 2-minute tour
×

MathOverflow is a question and answer site for professional mathematicians. It's 100% free, no registration required.

yes. – Pete L. Clark Mar 4 '11 at 10:06