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3 - Tensors, tensor densities

from Part I - Elements of differential geometry

Published online by Cambridge University Press:  30 May 2024

Jerzy Plebanski
Affiliation:
National Polytechnic Institute of Mexico
Andrzej Krasinski
Affiliation:
Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences
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Summary

Tensors and tensor densities of arbitrary rank on arbitrary differentiable manifolds are defined and described. The difference between covariant and contravariant vectors is explained and illustrated with examples. Mappings between manifolds and the associated mappings of tensors are discussed, and it is shown that coordinate transformations are examples of such mappings. The Levi-Civita symbols and multidimensional Kronecker deltas are defined, and their usefulness in calculations involving determinants is demonstrated.

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Publisher: Cambridge University Press
Print publication year: 2024

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  • Tensors, tensor densities
  • Jerzy Plebanski, National Polytechnic Institute of Mexico, Andrzej Krasinski, Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences
  • Book: An Introduction to General Relativity and Cosmology
  • Online publication: 30 May 2024
  • Chapter DOI: https://doi.org/10.1017/9781009415651.004
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  • Tensors, tensor densities
  • Jerzy Plebanski, National Polytechnic Institute of Mexico, Andrzej Krasinski, Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences
  • Book: An Introduction to General Relativity and Cosmology
  • Online publication: 30 May 2024
  • Chapter DOI: https://doi.org/10.1017/9781009415651.004
Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Tensors, tensor densities
  • Jerzy Plebanski, National Polytechnic Institute of Mexico, Andrzej Krasinski, Nicolaus Copernicus Astronomical Center, Polish Academy of Sciences
  • Book: An Introduction to General Relativity and Cosmology
  • Online publication: 30 May 2024
  • Chapter DOI: https://doi.org/10.1017/9781009415651.004
Available formats
×