Tags » 3-manifolds

Are all 3-manifolds smoothable?

Mathematically supposedly all 3-manifolds are smoothable. However in physical models, for near to Planck scale, the manifold is no longer differentiable i.e. essentially no longer smooth. 51 more words

Letters From Ionia

SnapPy 2.1: Now with extra precision!

Marc Culler and I released SnapPy 2.1 today. The main new feature is the ManifoldHP variant of Manifold which does all floating-point calculations in quad-double precision… 202 more words

3-manifolds