A unified physical presentation of mixed, mixed-hybrid finite elements and usual finite differences for the determination of velocities in waterflow problems

Some comments conserning several related studies of least-squares methods are warranted to put the current work m perspective, e g see [5, 6, 10, 12, 16] Fix, Gunzburger and

preconditioning technique for the efficient solution of problems with local grid refinement, Compt. Xu, Convergence estimâtes for product itérative methods with applications to

BREZZÏ, Mixed nnâ Nonconforming Finite Element Methods : Implementation, Postprocessing and Error Estimâtes, RAIRO, M 2 AN, Vol. FORTIN, Mixed Finite Eléments for Second Order

A mixed finite element approximation is usedfor the pressure équation while a discontinuous upstream weighting scheme in conjunction with a mixed finite element method is

RAVIART, Mixed Finite Element Methods for Mh Order Elliptic Equations (to appear).. RAVIART, Interpolation Theory Over Curved Eléments, with Applications to Finite Element

Abstract — Degrees of freedom which are Lagrange multipliers anse in the finite element approximation of mixed vanational problems. When these degrees of freedom are

We present a new finite volume scheme for anisotropic heterogeneous diffusion problems on unstructured irregular grids, which simultaneously gives an approximation of the solution

We now show that, under one of its three forms and according to the choice of its parameters, a scheme from the HMMF (Hybrid Mimetic Mixed Family) may be interpreted as a