hyperinterpolations

Noun

hyperinterpolation (usually uncountable, plural hyperinterpolations)

1. (usually) interpolation on a surface of more than two dimensions
   • The resulting "filtered polynomial approximation" (a spherical polynomial of degree 2L-1) is then made fully discrete by approximating the inner product integrals by an N-point cubature rule of suitably high polynomial degree of precision, giving an approximation called "filtered...2015, Heping Wang, Ian H. Sloan, “On filtered polynomial approximation on the sphere”, in arXiv