About weak‐strong uniqueness for the 3D incompressible Navier‐Stokes system

This article studies the problem of L² stability and weak‐strong uniqueness of solutions of the incompressible Navier‐Stokes on the whole space \input amssym ${\Bbb S}^3$ constructed by Kato's approach in spaces coming from Littlewood‐Paley theory and using the L¹ smoothing effect for the heat flow. © 2011 Wiley Periodicals, Inc.