Dear students.
I have a medical appointment on Thursday 21.04. Hopefully I will be on time and we can continue with our lectures as planned (Lecture and not exercise session). If I do not make it on time, I suggest you start discussing the solutions of our Colloquium (I will upload the pdf tonight) and I join you as soon as I can.
I apologize for the inconvenience. I tried to reschedule my appointment but it was not possible.