Functions of a complex variable ... Miscellaneous topics of analysis in the complex domain ... Boundary value problems Functions of a complex variable ... Miscellaneous topics of analysis in the complex domain ... Boundary value problems / msc Integral equations ... Inverse problems ... Inverse problems Integral equations ... Inverse problems ... Inverse problems / msc Operator theory ... General theory of linear operators ... Eigenvalue problems Operator theory ... General theory of linear operators ... Eigenvalue problems / msc Ordinary differential equations ... General theory ... Inverse problems Ordinary differential equations ... General theory ... Inverse problems / msc Partial differential equations ... Miscellaneous topics ... Inverse problems Partial differential equations ... Miscellaneous topics ... Inverse problems / msc Partial differential equations ... Qualitative properties of solutions ... Resonances Partial differential equations ... Qualitative properties of solutions ... Resonances / msc Photonics Mathematics Potential theory ... Two-dimensional theory ... Integral representations, integral operators, integral equations methods Potential theory ... Two-dimensional theory ... Integral representations, integral operators, integral equations methods / msc Sound Mathematics