Noncommutative Black Holes and the Singularity Problem
  A phase-space noncommutativity in the context of a Kantowski-Sachs cosmological model is considered to study the interior of a Schwarzschild black hole. Due to the divergence of the probability of finding the black hole at the singularity from a canonical noncommutativity, one considers a non-canonical noncommutativity. It is shown that this more involved type of noncommutativity removes the problem of the singularity in a Schwarzschild black hole. 
C. Bastos, O. Bertolami, N.C. Dias and J.N. Prata
hep-th gr-qc