ar X iv : g r - qc / 9 71 10 11 v 1 5 N ov 1 99 7 An exterior for the Gödel spacetime

ar X iv : g r - qc / 9 71 10 64 v 1 2 0 N ov 1 99 7 Riemann - Cartan Space - times of Gödel Type

A class of Riemann-Cartan Gödel-type space-times are examined in the light of the equivalence problem techniques. The conditions for local space-time homogene-ity are derived, generalizing previous works on Riemannian Gödel-type space-times. The equivalence of Riemann-Cartan Gödel-type space-times of this class is studied. It is shown that they admit a five-dimensional group of affine-isometrie...

ar X iv : g r - qc / 9 70 80 05 v 1 4 A ug 1 99 7 Spacetime structure of an inflating global monopole

The evolution of a global monopole with an inflating core is investigated. An analytic expression for the exterior metric at large distances from the core is obtained. The overall spacetime structure is studied numerically, both in vacuum and in a radiation background.

ar X iv : g r - qc / 9 51 10 48 v 1 1 6 N ov 1 99 5 Two lectures on Two - Dimensional Gravity ∗

ar X iv : g r - qc / 9 61 10 11 v 1 5 N ov 1 99 6 On Relation between String Theory and Multidimensional Cosmology

It is shown that a transition from a multidimensional cosmological model with one internal space of the dimension d 1 to the effective tree-level bosonic string corresponds to an infinite number of the internal dimensions: d 1 → ∞.

ar X iv : g r - qc / 9 71 10 36 v 1 1 1 N ov 1 99 7 Local Cosmic String In Generalised Scalar Tensor Theory

A recent investigation shows that a local gauge string with a phenomenological energy momentum tensor, as prescribed by Vilenkin, is inconsistent in Brans-Dicke theory. In this work it has been shown that such a string is consistent in a more general scalar tensor theory where ω is function of the scalar field.A set of solutions of full nonlinear Einstein's equations for interior region of such...