In this paper, we consider suitable weak solutions of incompressible Navier-Stokes equations in four spatial dimensions. We obtain two "regularity criteria in terms of certain scale-invariant quantities. As a consequence, we show that the two-dimensional space-time Hausdorff measure of the set of singular points is equal to zero.
机构:
Univ Iowa, Dept Math, Iowa City, IA 52242 USA
Shanghai Jiao Tong Univ, Sch Math Sci, Shanghai 200240, Peoples R ChinaUniv Iowa, Dept Math, Iowa City, IA 52242 USA