lurflurf
Homework Helper
- 2,459
- 159
I have Green's Functions with Applications by Dean G. Duffy. It is pretty good and covers some more than other books. It is not really about electromagnetism, with all the Jackson talk if that is what you want Dyadic Green Functions in Electromagnetic Theory by Chen-To Tai is a great book. Both as are many specialized books are priced high most places so look at the library. I learned spherical harmonics from The Theory of Spherical and Ellipsoidal Harmonics by E. W. Hobson, it is a classic with flavor, but these days people probably do not want to know that much about them.