Corresponding states of fluid motion in nematic liquid crystals

We study the dynamic origin of the corresponding states law for the one-dim ensional and magnetic walls found above the Freedericksz threshold. The stu dy shows that (i) the absolute values for the dynamic parameters of the nem atic liquid crystals, such as their viscosity coefficients, have secondary importance in the determination of the observed universality and (ii) the e lastic constants and some ratio between the viscosity coefficients, which r emain practically constant when the nematic material is chan,oed, are the m ost important factors in determining the walls' periodicity. [S1063-651X(99 )02501-5].