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I've sometime read physics texts that mention tensor densities (or pseudo-tensors). I find they are quite an ugly notion and I'm not sure to understand their necessity in physics. I have realized that tensor densities with an integer weight can be expressed differently with standard tensors and that the use of pseudotensors in this context is only a sort of "simplification of notation". But i'd really like to know if tensor densities with non-integer weights are really used in physics and in which context.

Thank you

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# Use of tensor densities / pseudo tensors in physics

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