Splitting thin shells and the evolution of distributional solutions of Einstein equations

MARCOS A. RAMIREZ

Zakopane

Otro; LXIII Cracow School of Theoretical Physics; 2013

Universidad Jaguelónica

In this talk we study the existence of exact solutions that represent thin shells that at a point of their evolution split into a number of different shells in a differentiable manner, and of solutions that represent thin shells that acquire thickness as a result of the evaporation of some of their constituents. These constructions are fairly natural as they arise from stability analyses under infinitesimal separations of non-interacting shell constituents. In this way, their existence compromises the uniqueness of the evolution of thin shell models.