125 citations · 459 across the 10 of their papers we have counts for
10 papers
Numerical Relativity and Asymptotic Flatness
E. Deadman, J. M. Stewart
It is highly plausible that the region of space-time far from an isolated gravitating body is, in some sense, asymptotically Minkowskian. However theoretical studies of the full no…
A strongly hyperbolic and regular reduction of Einstein's equations for axisymmetric spacetimes
Oliver Rinne, John M. Stewart
This paper is concerned exclusively with axisymmetric spacetimes. We want to develop reductions of Einstein's equations which are suitable for numerical evolutions. We first make a…
Classical and Quantum Analysis of Repulsive Singularities in Four Dimensional Extended Supergravity
I. Gaida, H. R. Hollmann, J. M. Stewart
Non--minimal repulsive singularities (``repulsons'') in extended supergravity theories are investigated. The short distance antigravity properties of the repulsons are tested at th…
The Gowdy T3 Cosmologies revisited
S. D. Hern, J. M. Stewart
We have examined, repeated and extended earlier numerical calculations of Berger and Moncrief for the evolution of unpolarized Gowdy T3 cosmological models. Our results are consist…
Effective action and motion of a cosmic string
Malcolm Anderson, Filipe Bonjour, Ruth Gregory +1
We examine the leading order corrections to the Nambu effective action for the motion of a cosmic string, which appear at fourth order in the ratio of the width to radius of curvat…
The spherically symmetric collapse of a massless scalar field
Rufus S. Hamade, John M. Stewart
We report on a numerical study of the spherically symmetric collapse of a self-gravitating massless scalar field. Earlier results of Choptuik(1992, 1994) are confirmed. The field e…