Daily Archives: 2017/04/10

The disk and the hyperbolic model

The unit disk in the complex plane, together with geometry defined by invariants of fractional linear SU(1,1) action, known as the Poincaré disk, that is the arena of hyperbolic geometry. But why “hyperbolic”? It is time for us to learn, … Continue reading

Posted in Hyperbolic geometry, SU(1,1), Uncategorized | 3 Comments