The Invar Tensor Package
Symbolic Computation
2015-05-13 v1 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
The Invar package is introduced, a fast manipulator of generic scalar polynomial expressions formed from the Riemann tensor of a four-dimensional metric-compatible connection. The package can maximally simplify any polynomial containing tensor products of up to seven Riemann tensors within seconds. It has been implemented both in Mathematica and Maple algebraic systems.
Cite
@article{arxiv.0704.1756,
title = {The Invar Tensor Package},
author = {Jose M. Martin-Garcia and Renato Portugal and Leon R. U. Manssur},
journal= {arXiv preprint arXiv:0704.1756},
year = {2015}
}
Comments
Accepted in Computer Physics Communications. Package can be downloaded from http://metric.iem.csic.es/Martin-Garcia/xAct/Invar/ (Mathematica version) or http://www.lncc.br/~portugal/Invar.html (Maple version)