Dynamics of nematic liquid crystals with conformational degrees of freedom

On the bases of the Hamilton approach the dynamics of the biaxial nematic are considered. The hydrodynamic parameters that are bound up with broken symmetry are introduced in terms of the distortion tensor. The density and flux density of additive integrals of motion are given in terms of energy density. The equations for ideal hydrodynamics are obtained and the spectra of collective excitations of biaxial nematics are considered taking into account the factor of the form of molecules. (C) 2003 Wiley Periodicals, Inc.