1.Previous
3.Next

from the hyperboloid to the plane , taking the vertex from which to project to be for the ball and a point at infinity in the cone inside projective space for the half-space.
* Beltrami-Klein model: This is another model realised on the unit ball of ; rather than being given as an explicit metric it is usually presented as obtained by using stereographic projection from the hyperboloid model in Minkowski space to its horizontal tangent plane (that

1.Previous
3.Next