Abstract
This paper proves the global existence of strong solutions of the 2D liquid crystal model when nu(1) = k(2) = 0, nu(2) = k(1) = 1 or nu(1) = k(2) = 1, nu(2) = k(1) = 0. We also prove some regularity criteria when nu(1) = k(1) = 1, nu(2) = k(2) = 0 or nu(1) = k(1) = 0, nu(2) = k(2) = 1.