Mixed finite element methods are a tool to solve complex engineering
problems of different nature. This subject is treated in the volume from
the engineering and the mathematical point. Different applications are
considered which depict the value of mixed formulations in engineering
on one side. On the other side the mathematical background is provided
including proofs of convergence and stability of these methods and
adequate solvers for mixed problems are discussed. This broad spectrum
yields an indepth treatment of mixed methods from different
perspectives.