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34A25 - Analytical theory of ordinary differential equations: series, transformations, transforms, operational calculus, etc. [MSC 2020] |
35A22 - Transform methods (e.g. integral transforms) applied to PDEs [MSC 2020] |
35C15 - Integral representations of solutions to PDEs [MSC 2020] |
44-XX - Integral transforms, operational calculus [MSC 2020] |
45-XX - Integral equations [MSC 2020] |
45Axx - Linear integral equations [MSC 2020] |
45Bxx - Fredholm integral equations [MSC 2020] |
45Exx - Singular integral equations [MSC 2020] |
47A53 - (Semi-) Fredholm operators; index theories [MSC 2020] |