ar X iv : g r - qc / 9 90 70 33 v 2 1 3 Ju l 1 99 9 Unmissing the Missing Matter in

ar X iv : g r - qc / 9 90 70 33 v 1 8 J ul 1 99 9 Unmissing the Missing Matter in Neo - Kaluza - Klein Universes ∗

Uncompactified KK universes are so intrinsically connected to the otherwise only empirically required “missing” Dark Matter (DM),

ar X iv : g r - qc / 9 90 70 47 v 1 1 3 Ju l 1 99 9 Dynamics of Bianchi IX universe with massive scalar field

The dynamics of the Bianchi IX cosmological model with minimally coupled massive real scalar field is studied. The possibility of non-singular transition from contraction to expansion is shown. A set of initial conditions that lead to non-singular solutions is studied numerically.

ar X iv : g r - qc / 9 70 70 27 v 2 2 9 Ju l 1 99 7 CGPG - 97 / 7 - 1 Black Holes with Short Hair

We present spherically symmetric black hole solutions for Einstein gravity coupled to anisotropic matter. We show that these black holes have arbitrarily short hair, and argue for stability by showing that they can arise from dynamical collapse. We also show that a recent ‘no short hair’ theorem does not apply to these solutions. Pacs numbers: 04.20.Jb, 04.40.Nr, 04.70.Bw Typeset using REVTEX

ar X iv : g r - qc / 9 70 70 27 v 1 1 3 Ju l 1 99 7 CGPG - 97 / 7 - 1 Black Holes with Short Hair

We present spherically symmetric black hole solutions for Einstein gravity coupled to anisotropic matter. We show that these black holes have arbitrarily short hair, and argue for stability by showing that they can arise from dynamical collapse. We also show that a recent ‘no short hair’ theorem does not apply to these solutions. Pacs numbers: 04.20.Jb, 04.40.Nr, 04.70.Bw Typeset using REVTEX

ar X iv : n uc l - th / 9 90 60 29 v 3 1 5 Ju l 1 99 9 1 Quark Matter ’ 99 — Theoretical Summary : What Next ?