Dear students,

Problem Set 9 is now available in the course web page. It will be due next friday, December 9.

Let me point out that, with the material already covered in class, you will be able to solve the whole problem set, except for the extra credit part of Problem 5 (for which you will need to use a theorem that we will prove in class on monday).
In fact, you are incouraged to start solving the Problem Set during the week-end, (especially Problems 4 and 5), since it might help to better follow monday's lecture.

Cheers,

Alberto