180 citations · 223 across the 4 of their papers we have counts for
4 papers
GRLite and GRTensorJ: Graphical user interfaces to the computer algebra system GRTensorII
Mustapha Ishak, Peter Musgrave, John Mourra +2
GRLite and GRTensorJ are first and second generation graphical user interfaces to the computer algebra system GRTensorII. Current development centers on GRTensorJ, which provides f…
Invariants of the Riemann tensor for Class B Warped Product Spacetimes
Kevin Santosuosso, Denis Pollney, Nicos Pelavas +2
We use the computer algebra system \textit{GRTensorII} to examine invariants polynomial in the Riemann tensor for class warped product spacetimes - those which can be decompose…
Algorithms for computer algebra calculations in spacetime I. The calculation of curvature
Denis Pollney, Peter Musgrave, Kevin Santosuosso +1
We examine the relative performance of algorithms for the calculation of curvature in spacetime. The classical coordinate component method is compared to two distinct versions of t…
Junctions and thin shells in general relativity using computer algebra I: The Darmois-Israel Formalism
P. Musgrave, K. Lake
We present the GRjunction package which allows boundary surfaces and thin-shells in general relativity to be studied with a computer algebra system. Implementing the Darmois-Israel…