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xTras: A field-theory inspired xAct package for mathematica
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| Organization: | Max-Planck-Institut für Gravitationsphysik |
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| Computer Physics Communications |
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We present the tensor computer algebra package xTras, which provides functions and methods frequently needed when doing (classical) field theory. Amongst others, it can compute contractions, make Ansätze, and solve tensorial equations. It is built upon the tensor computer algebra system xAct, a collection of packages for Mathematica.
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Mathematica, Computer algebra, Tensor calculus, Field theory, Combinatorics, General relativity, Riemann tensor, Young tableaux
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