3 ms·

Well, Maxwell is Lorentz invariant. Schroedinger equation is not.

• gus_massa 6y ago
  There is an extension made by Dirac that is Lorentz invariant. It is even more weird, and to write the extension you need to consider positrons, so he predicted the existence of the positrons from this extended equation https://en.wikipedia.org/wiki/Dirac_equation https://en.wikipedia.org/wiki/Dirac_equation