Not sure its in the right place or not.If its not,sorry.(adsbygoogle = window.adsbygoogle || []).push({});

The relativity postulate of special relativity says that all physical equations should remain invariant under lorentz transformations And that includes Lagrangian too.

So it seems we have a symmetry(which is continuous),So by Noether's theorem,there should be a conserved quantity associated with it but I can't find what is that.

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# Lorentz covariance and Noether's theorem

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