关于加权差分方法的一点注记
A Note on the Method of Weighted Difference
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摘要: 在这篇短文中,对奇异摄动问题引进了新的差分逼近并证明了一致收敛的必要条件。选择适当的权因子可得到用Ilin方法所得的相同的差分格式。Abstract: In this short paper, we introduce a new difference approximation for singular perturbation problem and prove the necessary condition of uniform convergence. Selecting apposite weight factor, we obtain the same difference schemes as in the case of Ilin's method.
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[1] Doolan, E, P.,J, J. H. Miller and W.H. A. Schilders, Uniform Numerical Methods for Problems with Initial and Boundary Layers (1980). [2] 苏煌城、吴启光,椭圆-抛物微分方程奇异摄动问题的差分解法,应用数学和力学,1, 2 (1980),167-176. [3] 昊启光,奇异摄动问题的加权差分方法,应用数学和力学,5, 5 (1984), 633-638.
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