Aspects of Causality in the Parallelisable Implicit Evolution Scheme
General Relativity and Quantum Cosmology
2009-04-02 v2
Abstract
A (3+1)-evolutionary method in the framework of Regge Calculus, essentially a method of approximating manifolds with rigid simplices, makes an excellent tool to probe the evolution of manifolds with non-trivial topology or devoid of symmetry. The "Parallelisable Implicit Evolution Scheme" is one such method. Causality however, is an aspect of this method that has been barely investigated. In this paper, we show how causality can be accounted for in this evolutionary scheme. The revised algorithm is illustrated by a preliminary application to a skeletonised spherical Friedmann-Lema\^itre-Robertson-Walker universe.
Cite
@article{arxiv.0809.1815,
title = {Aspects of Causality in the Parallelisable Implicit Evolution Scheme},
author = {Parandis Khavari and Charles C. Dyer},
journal= {arXiv preprint arXiv:0809.1815},
year = {2009}
}
Comments
Major changes in the discussion section. A numerical example is included. Submitted to Classical and Quantum Gravity