| 42A05 |
- |
Trigonometric polynomials, inequalities, extremal problems |
| 42A10 |
- |
Trigonometric approximation |
| 42A16 |
- |
Fourier coefficients, Fourier series of functions with special properties, special Fourier series |
| 42A20 |
- |
Convergence and absolute convergence of Fourier and trigonometric series |
| 42A24 |
- |
Summability and absolute summability of Fourier and trigonometric series |
| 42A32 |
- |
Trigonometric series of special types (positive coefficients, monotonic coefficients, etc.) |
| 42A38 |
- |
Fourier and Fourier-Stieltjes transforms and other transforms of Fourier type |
| 42A45 |
- |
Multipliers |
| 42A50 |
- |
Conjugate functions, conjugate series, singular integrals |
| 42A55 |
- |
Lacunary series of trigonometric and other functions; Riesz products |
| 42A61 |
- |
Probabilistic methods |
| 42A63 |
- |
Uniqueness of trigonometric expansions, uniqueness of Fourier expansions, Riemann theory, localization |
| 42A65 |
- |
Completeness of sets of functions |
| 42A70 |
- |
Trigonometric moment problems |
| 42A75 |
- |
Classical almost periodic functions, mean periodic functions |
| 42A82 |
- |
Positive definite functions |
| 42A85 |
- |
Convolution, factorization |
| 42A99 |
- |
Miscellaneous |
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