Direct and Inverse Sobolev Error Estimates for Scattered Data Interpolation via Spherical Basis Functions.

Francis J. Narcowich Xingping Sun Joseph D. Ward Holger Wendland Direct and Inverse Sobolev Error Estimates for Scattered Data Interpolation via Spherical Basis Functions. 369-390 2007 7 Foundations of Computational Mathematics 3 http://dx.doi.org/10.1007/s10208-005-0197-7 db/journals/focm/focm7.html#NarcowichSWW07