Timeline for Are matrices and second rank tensors the same thing?
Current License: CC BY-SA 3.0
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| Sep 18, 2020 at 11:51 | comment | added | cowlinator | So, does this mean that you cannot apply a contraction operation to 2 matrices? If not, why? It seems like both 1st-rank tensors and vectors can both be contracted (since the contraction operation is a generalization of the dot product, therefore the 1st-rank tensor contraction is a trivial generalization (identical) with the dot product). | |
| Jul 14, 2012 at 18:37 | comment | added | dmckee --- ex-moderator kitten | @kleingordon For future reference we have MathJax active on the site which allows you to write neatly marked up mathematical notation using LaTeX-alike markup. I've done this one for you. | |
| Jul 14, 2012 at 18:36 | history | edited | dmckee --- ex-moderator kitten | CC BY-SA 3.0 |
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| May 14, 2012 at 15:36 | comment | added | Arnold Neumaier | @Revo: The relation beteen tensors and matrices is explained in the entry ''How are matrices and tensors related?'' in Chapter B8: Quantum gravity of my theoretical physics FAQ at mat.univie.ac.at/~neum/physfaq/physics-faq.html | |
| Feb 3, 2012 at 6:51 | vote | accept | Revo | ||
| Feb 2, 2012 at 21:08 | history | edited | kleingordon | CC BY-SA 3.0 |
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| Feb 2, 2012 at 20:58 | comment | added | kleingordon | Most introductory textbooks on general relativity offer great discussions of tensors and their relations to linear operators and dual spaces. One example would be Sean Carrol's book "Spacetime and Geometry," although different people have their own favorites | |
| Feb 2, 2012 at 20:55 | history | edited | kleingordon | CC BY-SA 3.0 |
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| Feb 2, 2012 at 20:50 | comment | added | Revo | Is there a reference where this difference is discussed with examples? | |
| Feb 2, 2012 at 20:47 | history | answered | kleingordon | CC BY-SA 3.0 |