  In two and three dimensions, we design and analyze a posteriori error
estimators for the mixed Stokes eigenvalue problem. The unknowns on this mixed
formulation are the pseudotress, velocity and pressure. With a lowest order
mixed finite element scheme, together with a postprocressing technique, we
prove that the proposed estimator is reliable and efficient. We illustrate the
results with several numerical tests in two and three dimensions in order to
assess the performance of the estimator.
