FGMshells Mathematics & science Mindlin plate theory Oseen problem Research & information: general bianisotropic media computational design convergence of the approximation corner singularity edge-based smoothed finite element method (ES-FEM) electromagnetic scattering finite element method finite-element method force vibration mixed interpolation of tensorial components (MITC) moving media pattern formation preconditioning rotating axisymmetric objects symmetric boundary condition three-layer composite shell time-harmonic electromagnetic fields variational formulation weighted finite element method well posedness