HW2 update

Hi everyone,

I fielded several questions about the HW2 assignment on Thursday and Friday from various students. (Awesome! I love questions.)

Most questions centred on aspects of group theory. Accordingly, I have modified the statement of Question 1 to make it easier for you to get started.  Another hint: if you find yourself with a divergent integral in Q3 then you may wish to regulate it by putting an upper cutoff Λ on your momentum. Overall, Q1 is easier than Q2, which is easier than Q3, which is easier than the optional Q4.

Here is the updated version of HW2.

Cheers,
Prof. P.