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35-XX - Partial differential equations [MSC 2020] |
35A15 - Variational methods applied to PDEs [MSC 2020] |
35B38 - Critical points of functionals in context of PDEs (e.g., energy functionals) [MSC 2020] |
35J15 - Second order elliptic equations [MSC 2020] |
35J20 - Variational methods for second-order elliptic equations [MSC 2020] |
35J25 - Boundary value problems for second-order elliptic equations [MSC 2020] |
35J60 - Nonlinear elliptic equations [MSC 2020] |
35J61 - Semilinear elliptic equations [MSC 2020] |
35J92 - Quasilinear elliptic equations with $p$-Laplacian [MSC 2020] |