Approximation by multiinteger translates of functions having global support
Journal of Approximation Theory
Box splines
Handbook of Mathematical Functions, With Formulas, Graphs, and Mathematical Tables,
Handbook of Mathematical Functions, With Formulas, Graphs, and Mathematical Tables,
Scattered data reconstruction by regularization in B-spline and associated wavelet spaces
Journal of Approximation Theory
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Under certain assumptions on the compactly supported function φ ∈ C(Rd), we propose two methods of selecting a function s from the scaled principal shift-invariant space Sh(φ) such that s interpolates a given function f at a scattered set of data locations. For both methods, the selection scheme amounts to solving a quadratic programming problem and we are able to prove error estimates similar to those obtained by Duchon for surface spline interpolation.