摘要

We consider the regularity criterion for the three dimensional incompressible Navier-Stokes equations in terms of one directional derivative of the velocity. The result shows that if weak solution u satisfies partial derivative(3)u is an element of L2/1-r (0, T; (M) Over dot(p,3/r) (R-3)) with 0 < r < 1 and 2 <= p <= 3/r, then u is regular on (0, T] x R-3. Here, is the homogeneous Morrey-Campanato space.