First problem set

The first problem set is now online, where you can i) recap in slightly more detail an argument about conserved currents given in the lecture, ii) apply the Lagrange formalism to electromagnetism  and iii) get some hands-on experience on how to treat Lorentz transformations (in particular how to recover the familiar finite form from the infinitesimal form introduced in the lecture) .

Let me use this opportunity to remind you that the exercises are an integral part of the course, and contain important information that applies, but sometimes also extends, what is explicitly covered in the lectures.