Specifically,
in this work he has applied geometric structures similar to those of a crystal or graphene layer, not typically used to describe
black holes, since these geometries better match what happens inside a
black hole: «Just as crystals have imperfections
in their
microscopic structure, the central region of a
black hole can be interpreted as an anomaly
in space - time, which requires new geometric elements
in order to be able to describe them more precisely.