Daily Archives: 2017/04/13

Hyperbolic angels and demons

In SU(1,1) preserves angles we have seen this picture: These are straight lines on the disk obtained from the interval on the real axis by the action of a one-parameter family of left shifts from SU(1,1). Since our geometry is, … Continue reading

Posted in Geometry, Hyperbolic geometry, SU(1,1) | 4 Comments