THE GOWDY T3 COSMOLOGY AS A TEST MODEL FOR NUMERICAL RELATIVITY
Pages 112-116
Marius T. Dan, Dumitru N. Vulcanov
Abstract
Recent numerical analysis investigations point out several troubles concerning the stability and convergence of equations used in numerical relativity, namely the BSSN method versus the classical ADM one. The Gowdy T3 cosmology proved to be one of the models revealing these problems, thus we concentrate on this model in establishing certain solutions to the pathologies of numerical simulations with the Cactus code.