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47-XX - Operator theory [MSC 2020] |
35-XX - Partial differential equations [MSC 2020] |
35S05 - Pseudodifferential operators as generalizations of partial differential operators [MSC 2020] |
35S30 - Fourier integral operators applied to PDEs [MSC 2020] |
35P20 - Asymptotic distribution of eigenvalues in context of PDEs [MSC 2020] |
58J40 - Pseudodifferential and Fourier integral operators on manifolds [MSC 2020] |
47G30 - Pseudodifferential operators [MSC 2020] |