MG11 
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Fragmentation of general relativistic quasi-toroidal polytropes

We investigate fragmentation instabilities and black hole formation in general relativistic, almost toroidal polytropes. From the set of models investigated in this study, many are unstable to non-axisymmetric perturbations, which lead to fission into one or several orbiting fragments. These fragments may collapse, and we discuss whether a multiple black hole merger system with a disk can be produced from a single star in this manner.