Homework Set # 7 - Due March 10

  
   
1) Problem 8.7

2) Problem 8.9 (Hint: the sum over k' can be replaced by an intergral in order to integrate by parts and then replace again by a sum).

3) Problem 11.1: I) Provide an expression for d and R in terms of the lattice distance a. Say the range in which you have to let n_i range (how far away from R=0 you had to go until you got the result to 5 decimal places).

4) Problem 11.2

5) Problem 11.6