Approximation Theory Darcy-Forchheimer model Deep Neural Nets Materiales Mathematics & science Obrechkoff schemes Propiedades mecánicas ReLU Networks Research & information: general Rogers-Szegő Szegő polynomials Thiele-like rational interpolation continued fractions with parameters approximation clustering constraints deep learning directional statistics embedded constraints finite element method flow in porous media generalized multiscale finite element method heterogeneous media interpolation inverse difference linear multistep methods mixed generalized multiscale finite element method multiscale basis functions multiscale method multiscale model reduction native spaces