<正> In this paper we study the first law of thermodynamics for the(2+1)-dimensional rotating charged BTZblack hole considering a pair of thermodynamieal system
<正> The collective excitations of low-dimensional Bose-Einstein condensates with two-and three-body inter-actions in anharmonic potentials are investigated.Usi
<正> We investigate the formation of optical bistabifity (OB) in a crystal of molecular magnets contained in aunidirectional ring cavity.The crystal is subjecte