Mathematics Communications Engineering, Networks Telecommunication Artificial Intelligence Artificial intelligence Biomedical engineering Differential equations Image processing Image processing -- Mathematics -- Congresses Mathematical physics Partial differential equations -- Miscellaneous topics -- Inverse problems Radiology Signal processing Applications of Mathematics Automation Biomedical Engineering and Bioengineering Computational Intelligence Computational intelligence Computer networks  Control and Systems Theory Control engineering Control, Robotics, Automation Differential Equations Differential equations, Partial Electronic Circuits and Systems Electronic circuits Engineering mathematics Engineering—Data processing Partial differential equations -- Elliptic equations and systems -- Boundary value problems for second-order elliptic equations Partial differential equations -- Elliptic equations and systems -- Laplacian operator, reduced wave equation (Helmholtz equation), Poisson equation