Electronic Journal of Differential Equations, Vol. 2013 (2013), No. 107, pp. 1-22. Title: Serrin blow-up criterion for strong solutions to the 3-D compressible nematic liquid crystal flows with vacuum Author: Qiao Liu (Hunan Normal Univ., Changsha, Hunan, China) Abstract: In this article, we extend the well-known Serrin's blow-up criterion for solutions of the 3-D incompressible Navier-Stokes equations to the 3-D compressible nematic liquid crystal flows where the initial vacuum is allowed. It is proved that for the initial-boundary value problem of the 3-D compressible nematic liquid crystal flows in a bounded domain, the strong solution exists globally if the velocity satisfies the Serrin's condition and $L^1(0,T;L^{\infty})$-norm of the gradient of the velocity is bounded. Submitted September 12, 2012. Published April 24, 2013. Math Subject Classifications: 76A15, 76N10, 35B65, 35Q35 Key Words: Compressible nematic liquid crystal flows; strong solution; Serrin's criterion; blow-up criterion; compressible Navier-Stokes equations.