The mystery of non-Hausdorff manifolds

A review of the least-discussed manifolds of all

Last updated : 2019-02-15 10:54:13

Geodesically complete incompleteness and the most awful spacetimes

How one can construct a geodesically complete spacetime with singularities

Last updated : 2018-11-14 10:07:16

All about $1$-manifolds

Last updated : 2018-11-13 11:56:06