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42-XX - Harmonic analysis on Euclidean spaces [MSC 2020] |
34A30 - Linear ordinary differential equations and systems, general [MSC 2020] |
42A20 - Convergence and absolute convergence of Fourier and trigonometric series [MSC 2020] |
42A75 - Classical almost periodic functions, mean periodic functions [MSC 2020] |
43A60 - Almost periodic functions on groups and semigroups and their generalizations (recurrent functions, distal functions, etc.); almost automorphic functions [MSC 2020] |
34Axx - General theory for ordinary differential equations [MSC 2020] |
43A77 - Harmonic analysis on general compact groups [MSC 2020] |
42A24 - Summability and absolute summability of Fourier and trigonometric series [MSC 2020] |
42A38 - Fourier and Fourier-Stieltjes transforms and other transforms of Fourier type [MSC 2020] |