  The aim of this work is to show an abstract framework to analyze a family of
linear degenerate parabolic mixed equations. We combine the theory for the
degenerate parabolic equations with the classical Babuska-Brezzi theory for
linear mixed stationary equations to deduce sufficient conditions to prove the
well-posedness of the problem. Finally, we illustrate the application of the
abstract framework through examples that come from physical science
applications including fluid dynamics models and electromagnetic problems.
