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47-XX - Operator theory [MSC 2020] |
42-XX - Harmonic analysis on Euclidean spaces [MSC 2020] |
47Fxx - Partial differential operators [MSC 2020] |
47B25 - Linear symmetric and selfadjoint operators (unbounded) [MSC 2020] |
35R20 - Operator partial differential equations (= PDEs on finite-dimensional spaces for abstract space valued functions) [MSC 2020] |
46F10 - Operations with distributions and generalized functions [MSC 2020] |
46Nxx - Miscellaneous applications of functional analysis [MSC 2020] |
42A38 - Fourier and Fourier-Stieltjes transforms and other transforms of Fourier type [MSC 2020] |