节点文献
一类带小参数反应——扩散型方程组的性态估计
NUMERICAL METHOD FOR SYSTEMS OF RECATION -DIFFUSIONEQUATIONS WITH A SMALL PARAMETER
【摘要】 得到了激光等离子能量交换模型研究中的一类反应——扩散方程组的总体解的存在性 .并通过引进光滑符号函数对解析解的性态进行了估计 ,为数值方法的误差分析提供了理论依据
【Abstract】 This paper is concerned with the numerical method for systems of reaction diffusion equations.the simulation of the energy transfer of laser produced plasma and physiological phenomenon will be reduced to this kind of problems. It is difficult to solve numerically,because of the physical process exchange quickly near the boundary.In order to be sure of the precision of the numerical soultion,we choose meshes{h i} such that there are several mesh points and Greens function the difference scheme is established.We proved if the feasoble equidistant degree α2,the scheme convergent in L 1 norm with speed O(h+△t)uniformly.
【关键词】 Gronwall不等式;
光滑符号函数;
不变区域;
【Key words】 difference scheme; mesh equidistant degree.Discrete Green function methods.;
【Key words】 difference scheme; mesh equidistant degree.Discrete Green function methods.;
- 【文献出处】 数学理论与应用 ,Mathematical Theory and Application , 编辑部邮箱 ,2000年02期
- 【分类号】O211
- 【被引频次】6
- 【下载频次】34