Roberto Giambo et al 2003 Class. Quantum Grav. 20 L75 doi:10.1088/0264-9381/20/6/102
Roberto Giambo1, Fabio Giannoni1, Giulio Magli2 and Paolo Piccione1,3
Show affiliationsA theorem, giving necessary and sufficient condition for naked singularity formation in spherically symmetric non-static spacetimes under hypotheses of physical acceptability, is formulated and proved. The theorem relates the existence of singular null geodesics to the existence of regular curves which are supersolutions of the radial null geodesic equation, and allows us to treat all the known examples of naked singularities from a unified viewpoint. New examples are also found using this approach, and perspectives are discussed.
95.30.Sf Relativity and gravitation
83C75 Space-time singularities, cosmic censorship, etc.
83C20 Classes of solutions; algebraically special solutions, metrics with symmetries
Issue 6 (21 March 2003)
Received 3 January 2003
Published 3 March 2003
Roberto Giambo et al 2003 Class. Quantum Grav. 20 L75
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