An important inequality is used to establish some criteria for the oscillation of forced differenceequation and it is generalized to higher order.
借助一个重要的不等式研究一类带有强迫项的时滞差分方程的振动性，并推广至高阶的情形。
2
In this paper, an, implicit finite difference scheme is constructed for the initial-boundary value problem of a generalized Regularized Long-Wave equation.
It features simplicity in calculation, higher precision in consequence compared with analytic method. It can be applied generalized to solve non-linear differenceequation.