42-XX |
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Harmonic analysis on Euclidean spaces |
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42Cxx |
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Nontrigonometric harmonic analysis |
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42C05 |
Orthogonal functions and polynomials, general theory of nontrigonometric harmonic analysis [See also 33C45, 33C50, 33D45] |
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42C10 |
Fourier series in special orthogonal functions (Legendre polynomials, Walsh functions, etc.) |
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42C15 |
General harmonic expansions, frames |
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42C20 |
Other transformations of harmonic type |
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42C25 |
Uniqueness and localization for orthogonal series |
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42C30 |
Completeness of sets of functions in nontrigonometric harmonic analysis |
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42C40 |
Nontrigonometric harmonic analysis involving wavelets and other special systems |
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42C99 |
None of the above, but in this section |