358 citations · 1.4k across the 48 of their papers we have counts for
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Penrose limits of inhomogeneous space-times, their diagonalizability and twistors
Kerstin E. Kunze
Penrose limits are considered in space-times admitting two abelian, space-like Killing vectors in vacuum as well as in the presence of an electromagnetic field. This type of space-…
Asymptotic behaviour of curvature and matter in the Penrose limit
Kerstin E. Kunze
The asymptotic behaviour of the components of the Weyl tensor and of the energy-momentum tensor in the Penrose limit is determined. In both cases a peeling-off property is found. E…
T-Duality and Penrose limits of spatially homogeneous and inhomogeneous cosmologies
Kerstin E. Kunze
Penrose limits of inhomogeneous cosmologies admitting two abelian Killing vectors and their abelian T-duals are found in general. The wave profiles of the resulting plane waves are…
Anisotropic 'hairs' in string cosmology
Kerstin E. Kunze, Ruth Durrer
In this letter we investigate whether the isotropy problem is naturally solved in inflationary cosmologies inspired by string theory, so called pre-big-bang cosmologies. We find th…
Asymptotic Behaviour of Inhomogeneous String Cosmologies
Kerstin E. Kunze
The asymptotic behaviour at late times of inhomogeneous axion-dilaton cosmologies is investigated. The space-times considered here admit two abelian space-like Killing vectors. The…
Exact Inhomogeneous Cosmological Models
John D. Barrow, Kerstin E. Kunze
We present new exact inhomogeneous vacuum cosmological solutions of Einstein's equations. They provide new information about the nature of general cosmological solutions to Einstei…