Convolutions

The generalised lifted convolution, and the spherical convolutions that it unifies. The modules are as follows.

Module	Contents
s2conv.convolutions.lifted	The four lifted operators (Theorem V.2) and their weight forms (Theorem V.5)
s2conv.convolutions.classical	The named convolutions of the literature
s2conv.convolutions.physics	The spin raising and lowering operators, the E/B decomposition and the Kaiser–Squires operator
s2conv.convolutions.section	Section evaluation: the standard correlation and the commutative anisotropic convolution
s2conv.convolutions.diagonal	Harmonic multiplication and sifting
s2conv.convolutions.sampled	The operators applied to samples of signals