Jackson classical electrodynamics section 9-6

[qnach]

I am not sure what does Jackson want to talk in section 9-6?
Is that just a review of something discussed previously?
Chapter 9 is talking about radiation, and later about multipole expansion.

 

[jedishrfu]

These classnotes may answer your question on what Jackson is gettting at:

http://scipp.ucsc.edu/~dine/ph214/214_vector_spherical_harmonics_lecture.pdf

 

[qnach]

These classnotes may answer your question on what Jackson is gettting at:

http://scipp.ucsc.edu/~dine/ph214/214_vector_spherical_harmonics_lecture.pdf

It talked about vector spherical harmonics but did not answer my question.