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Mathematical Sciences Classification System

42Cxx - Nontrigonometric harmonic analysis

• 34
  42C05
  Orthogonal functions and polynomials, general theory [See also 33C45, 33C50, 33D45]
• 6
  42C10
  Fourier series in special orthogonal functions (Legendre polynomials, Walsh functions, etc.)
• 22
  42C15
  General harmonic expansions, frames
• 42C20
  Other transformations of harmonic type
• 42C25
  Uniqueness and localization for orthogonal series
• 1
  42C30
  Completeness of sets of functions
• 106
  42C40
  Wavelets and other special systems
• 42C99
  None of the above, but in this section