## Numerical solution of the biharmonic problem by mixed finite elements of class $$C^0$$.(English)Zbl 0332.65058

### MSC:

 65N30 Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs 65N06 Finite difference methods for boundary value problems involving PDEs 65N12 Stability and convergence of numerical methods for boundary value problems involving PDEs 35A15 Variational methods applied to PDEs 35A35 Theoretical approximation in context of PDEs 65M99 Numerical methods for partial differential equations, initial value and time-dependent initial-boundary value problems 65N99 Numerical methods for partial differential equations, boundary value problems