Generalized Spherical Harmonics
M. H. Protter · Transactions of the American Mathematical Society · 1948
H. PROTTER(') ' \(2N -2r -2s) ! *7 (27Y -2r -2s + I) if 'Since the above expression is in the form of (2.3), the explicit expressions for Rn,v(x, y, z) for the case k and / even are RiNA*(x, y, z) (2.5a) *;' ' (-l)N~'-'(2N)l(N -r -s)lx*Tfztlf-tr-u tTo TZo (2r)l(2s)\(2N -2r -2s)\(N -v -s)\(v -r)!