En este trabajo proponemos y analizamos, utilizando principalmente herramientas y resultados abstractos sobre espacios de Banach en lugar de aquellos sobre Hilbert, un nuevo método de elementos finitos completamente mixto ...

This work is divided in two main parts. In the first part we provide sufficient conditions for perturbed saddle-point formulations in Banach spaces and their associated Galerkin schemes to be well-posed. Our approach, ...