Differential equations involving vector fields expressed in terms of spherical polar coordinates are readily manipulated by the use of vector spherical harmonics. The explicit definitions of these functions and a sufficient set of formulas for easy calculation are given.
CITATION STYLE
Hill, E. L. (1954). The Theory of Vector Spherical Harmonics. American Journal of Physics, 22(4), 211–214. https://doi.org/10.1119/1.1933682
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