Ls(Lq)-estimates of the pressure - The proof of Sohr-von Wahl and its impact on mathematical fluid dynamics

The article On the regularity of the pressure of weak solutions of Navier–Stokes equations by H. Sohr and W. von Wahl (1986) is one of the most-cited papers of the journal Archiv der Mathematik. Our aim is to describe not only the content of the paper, but especially the novelty of its results on maximal regularity of the Stokes operator considered from a point of view of the eighties and from a modern point of view.