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- A more geometrical approach to Minkowski space.

- Basic classical relativistic field theory in Lagrangian form. Essentially discussing the restrictions arising from requiring the Lagrangian density to be a Lorentz scalar and the resulting implications for scalar and vector fields (essentially the classical KG field and electromagnetism).

I have some trouble finding a good textbook, particularly when it comes to the second requirement. Does anyone know of any good choices?

Edit: It won't hurt if it also includes introductory GR as many students will be taking both courses.

@vanhees71 @robphy @PeroK (or anyone else)