Veiled Singularities for the Spherically Symmetric Massless Einstein-Vlasov System

This paper continues the investigation of the formation of naked singularities in the collapse of collisionless matter initiated in Rendall and Velazquez (Annales Henri Poincar, 12:919-964, 2011). There the existence of certain classes of non-smooth solutions of the Einstein-Vlasov system was proved. Those solutions are self-similar and hence not asymptotically flat. To obtain solutions which are more physically relevant it makes sense to attempt to cut off these solutions in a suitable way so as to make them asymptotically flat. This task, which turns out to be technically challenging, will be carried out in this paper.