在时间和空间上基于有限差分法和利用待定系数法,构造了一维空间分数阶扩散方程的一个新的高阶数值格式.在理论上严格证明了此算法的稳定性和一系列的数值算例验证了理论分析的正确性,表明算法是逼近数值解的一个行之有效的方法.
In this paper,we construct the new high order numerical method of the onedimension space fractional diffusion equation based on a finite difference in time and space.Stability of the method is rigorously established.A series of numerical examples are provided to support the theoretical claims that we propose an efficient method for its numerical solution.