Khalid, ZubairKennedy, RodneySadeghi, Parastoo2015-12-13December 19781467323932http://hdl.handle.net/1885/82836Recently, the commutative anisotropic convolution has been defined for signals defined on the 2-sphere. Here, we present exact and efficient methods for computation of commutative convolution of two signals defined on the sphere. For fast computation of cKeywords: 2-sphere; Efficient computation; Fast algorithms; Fast computation; Numerical experiments; Separation of variables; Spherical harmonics; Unit spheres; Algorithms; Anisotropy; Communication systems; Computational complexity; Signal processing; Spheres; Con 2-sphere (unit sphere); convolution; spherical harmonics201210.1109/ICSPCS.2012.65079902016-02-24