摘要
We consider the stability of a specific nematic liquid crystal configuration under an applied magnetic field. We show that for some specific configuration there exist two critical values Hn and Hsh of applied magnetic field. When the intensity of the magnetic field is smaller than Hn, the configuration of the energy is only global minimizer, when the intensity is between Hn and Hsh, the configuration is not global minimizer, but is weakly stable, and when the intensity is larger than Hsh, the configuration is instable. Moreover, we also examine the asymptotic behavior of the global minimizer as the intensity tends to the infinity.
