Includes supplementary material: sn.pub/extras
Willi Freeden
Approximation applied mathematics geosciences mathematical physics special functions
From the reviews:
"This book concentrates the introduction of mathematical representation of spherical vector and tensor fields. Vector/tensor spherical harmonics are used throughout mathematics. This book is a valuable reference for scientists and practitioners when facing spherical problems." (Chengshu Wang, Zentralblatt MATH, Vol. 1167, 2009)