<正> An improved algorithm for symbolic computations of polynomial-type conservation laws (PCLaws) of ageneral polynomial nonlinear system is presented.The algo
<正> In this paper,a new completely integrable system related to the complex spectral problem —φ_(xx)+(i/4)uφ_x+(i/4)(uφ)_x+(1/4)vφ=iλφ_x and the constra
<正> With the aid of computation,we consider the variable-coefficient coupied nonlinear Schr(o|¨)dinger equationswith the effects of group-velocity dispers