d2d(φ) dφ Φ(φ) Asin(p)+BC0s(φ),μ≠0 118) aφ+b e(0)=Ag PI(cos 0)+ BeO(cos 8) (D.119) IR()=A, r+B, r-(n+, k=0, Ar Fi(kr)+B, f2(kr) (D120) F1(),F21)=mn) (D.121) h2)() @2001 by CRC Press LLCd2(φ) dφ2 + µ2 (φ) = 0 (D.117) (φ) = Aφ sin(µφ) + Bφ cos(µφ), µ = 0, aφφ + bφ, µ = 0. (D.118) (θ) = Aθ Pµ n (cos θ) + Bθ Qµ n (cos θ) (D.119) R(r) = R(r) = Arr n + Brr−(n+1) , k = 0, Ar F1(kr) + Br F2(kr), otherwise. (D.120) F1(ξ), F2(ξ) =    jn(ξ) nn(ξ) h(1) n (ξ) h(2) n (ξ) (D.121)