55 citations · 182 across the 14 of their papers we have counts for
4 papers · 1 filter
Do naked singularities generically occur in generalized theories of gravity?
Kengo Maeda, Takashi Torii, Makoto Narita
A new mechanism for causing naked singularities is found in an effective superstring theory. We investigate the gravitational collapse in a spherically symmetric Einstein-Maxwell-d…
No-scalar hair conjecture in asymptotic de-Sitter spacetime
T. Torii, K. Meeda, M. Narita
We discuss the no-hair conjecture in the presence of a cosmological constant. For the firststep the real scalar field is considered as the matter field and the spacetime is assumed…
Rigid Singularity Theorem in Globally Hyperbolic Spacetimes
Makoto Narita
We show the rigid singularity theorem, that is, a globally hyperbolic spacetime satisfying the strong energy condition and containing past trapped sets, either is timelike geodesic…
Chronology Protection and Non-Naked Singularity
Kengo Maeda, Akihiro Ishibashi, Makoto Narita
We test the chronology protection conjecture in classical general relativity by investigating finitely vicious space-times. First we present singularity theorems in finitely viciou…