ar X iv : g r - qc / 9 21 20 13 v 1 2 1 D ec 1 99 2 Inhomogeneous and anisotropic cosmologies

ar X iv : g r - qc / 9 81 20 69 v 1 1 8 D ec 1 99 8 G 1 Cosmologies with Gravitational and Scalar Waves

I present here a new algorithm to generate families of inhomogeneous mass-less scalar field cosmologies. New spacetimes, having a single isometry, are generated by breaking the homogeneity of massless scalar field G 2 models along one direction. As an illustration of the technique I construct cosmo-logical models which in their late time limit represent perturbations in the form of gravitationa...

ar X iv : g r - qc / 9 51 10 66 v 1 2 4 N ov 1 99 5 Scalar Field Inhomogeneous

Some exact solutions for the Einstein field equations corresponding to inhomogeneous G 2 cosmologies with an exponential-potential scalar field which generalize solutions obtained previously are considered. Several particular cases are studied and the properties related to generalized inflation and asymptotic behaviour of the models are discussed.

ar X iv : g r - qc / 9 61 20 09 v 1 3 D ec 1 99 6 Signal analysis of gravitational waves

ar X iv : g r - qc / 9 60 20 21 v 2 1 7 M ar 1 99 6 1 Some remarks on finite - gap solutions of the Ernst equation

It is explicitly shown that the class of algebro-geometrical (finite-gap) solutions of the Ernst equation constructed several years ago in [1] contains the solutions recently constructed by R.Meinel and G.Neugebauer [2] as a subset.

ar X iv : g r - qc / 9 71 20 17 v 2 3 D ec 1 99 7 UAHEP 9714 Microfield Dynamics of Black Holes

The microcanonical treatment of black holes as opposed to the canonical formulation is reviewed and some major differences are displayed. In particular the decay rates are compared in the two different pictures.