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working paper
Sparse spectral approximations for computing polynomial functionals
2012
We give a new fast method for evaluating sprectral approximations of nonlinear polynomial functionals. We prove that the new algorithm is convergent if the functions considered are smooth enough, under a general assumption on the spectral eigenfunctions that turns out to be satised in many cases, including the Fourier and Hermite basis.
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Sparse_spectral_approximations.pdf
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openaccess
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703.68 KB
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Adobe PDF
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