September 17th -Thursday- 12:10
"Naked singularities, cosmic censorship conjecture and self-adjoint extensions"
Alberto Saa(Campinas University (Brasil)
Many spacetimes in General Relativity can present naked singularities which physical interpretation is a notable challenge. The cosmic censorship conjecture states basically that, in physically reasonable conditions, any spacetime singularity must be covered by an event horizon, i.e., naked singularities should not exist. However, for wave phenomena, some naked singularities are effectively harmless due to the self-adjointness properties of their governing equations. These results suggest that the cosmic censorship conjecture might be weaker for wave phenomena than the typical geodesic formulation.
Facultad de CienciasSeminario de Física Teórica Universidad de Zaragoza