97 citations · 163 across the 13 of their papers we have counts for
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math.NA2015★ 1 cited
Needlet approximation for isotropic random fields on the sphere
Quoc T. Le Gia, Ian H. Sloan, Yu Guang Wang +1
In this paper we establish a multiscale approximation for random fields on the sphere using spherical needlets --- a class of spherical wavelets. We prove that the semidiscrete nee…
math.NA2015
Fully discrete needlet approximation on the sphere
Yu Guang Wang, Quoc T. Le Gia, Ian H. Sloan +1
Spherical needlets are highly localized radial polynomials on the sphere , , with centers at the nodes of a suitable cubature rule.…