Gravitational collapse of an infinite dust cylinder
  We examine the gravitational collapse of an infinite cylindrical distribution of time like dust. In order to simplify the calculation we make an assumption that the axial and azimuthal metric functions are equal. It is shown that the resulting solution describes homogeneous collapse. We show that the interior metric can be matched to a time dependent exterior. We also discuss the nature of the singularity in the matter region and show that it is covered. 
Sashideep Gutti, T. P. Singh, Pranesh Sundararajan and Cenalo Vaz