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xTras: a field-theory inspired xAct package for Mathematica. (English) Zbl 1348.70003

Summary: 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.

MSC:

70-04 Software, source code, etc. for problems pertaining to mechanics of particles and systems
81-04 Software, source code, etc. for problems pertaining to quantum theory
70-08 Computational methods for problems pertaining to mechanics of particles and systems
70S99 Classical field theories
81T99 Quantum field theory; related classical field theories
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References:

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