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Approximating with Gaussians
classification
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math.FA
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densegaussianalgorithmsapproximatingapproximationscoefficientscombinationsdetermining
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Linear combinations of translations of a single Gaussian, e^{-x^2}, are shown to be dense in L^2(R). Two algorithms for determining the coefficients for the approximations are given, using orthogonal Hermite functions and least squares. Taking the Fourier transform of this result shows low-frequency trigonometric series are dense in L^2 with Gaussian weight function.
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