42Bxx Harmonic analysis in several variables (For automorphic theory, see mainly 11F30)
- 42B05 Fourier series and coefficients (1)
- 42B08 Summability
- 42B10 Fourier and Fourier-Stieltjes transforms and other transforms of Fourier type
- 42B15 Multipliers
- 42B20 Singular and oscillatory integrals (Calderón-Zygmund, etc.)
- 42B25 Maximal functions, Littlewood-Paley theory
- 42B30 Hp-spaces
- 42B35 Function spaces arising in harmonic analysis (1)
- 42B37 Harmonic analysis and PDE [See also 35-XX] (1)
- 42B99 None of the above, but in this section