Efficient and accurate rotation of finite spherical harmonics expansions


Spherical harmonics are employed in a wide range of applications in computational science and physics, and many of them require the rotation of functions. We present an efficient and accurate algorithm for the rotation of finite spherical harmonics expansions. Exploiting the pointwise action of the rotation group on functions on the sphere, we obtain the… (More)
DOI: 10.1016/j.jcp.2011.09.014


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