Radial Basis Functions
Meshfree Approximation Methods with MATLAB
Meshfree Approximation Methods with MATLAB
Error saturation in Gaussian radial basis functions on a finite interval
Journal of Computational and Applied Mathematics
The uselessness of the Fast Gauss Transform for summing Gaussian radial basis function series
Journal of Computational Physics
Error saturation in Gaussian radial basis functions on a finite interval
Journal of Computational and Applied Mathematics
Computers & Mathematics with Applications
Applied Numerical Mathematics
Computers & Mathematics with Applications
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Radial basis functions are popular for interpolation on a scattered or irregular grid. However, theory for an irregular grid is mostly limited to proofs of convergence. Here, we present theory and numerical experiments for two specific cases. The first is an otherwise uniform grid of spacing h in which one point is shifted by an amount sh. The second is a uniform grid with one point omitted. We discuss Gaussian, hyperbolic secant, and inverse quadratic RBFs.