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Physical Sciences and Mathematics Commons

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Utah State University

Series

2016

Applied Mathematics

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Full-Text Articles in Physical Sciences and Mathematics

The Kretschmann Scalar, Charles G. Torre Jan 2016

The Kretschmann Scalar, Charles G. Torre

How to... in 10 minutes or less

On a pseudo-Riemannian manifold with metric g, the "Kretschmann scalar" is a quadratic scalar invariant of the Riemann R tensor of g, defined by contracting all indices with g. In this worksheet we show how to calculate the Kretschmann scalar from a metric.