Applications of the Lieb--Thirring and other bounds for orthonormal systems in mathematical hydrodynamics

Abstract: We discuss the estimates for the $L^p$-norms of systems of functions that are orthonormal in $L^2$ and $H^1$, respectively, and their essential role in deriving good or even optimal bounds for the dimension of global attractors for the classical Navier--Stokes equations and for a class of $\alpha$-models approximating them. New applications to interpolation inequalities on the 2D torus are also given.