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Burgers-KdV方程差分解的收敛性和稳定性
The Convergence and Stability of Differential Solutions for Burgers-KdV Equation
【摘要】 对 Burgers- Kd V方程的周期边值问题建立了全离散两层加权中心差分格式 ,得到差分解及其高阶差商的模估计 ,从而证明了差分解的收敛性和稳定性 ,并且得到了显格式和弱隐格式收敛性及稳定性的步长限制条件 .
【Abstract】 In this paper,we construct the full-discrete center differential schemes with a parameter α for the periodic boundary problem of the Burgers-KdV equation.The estimates of the differential solution and its differential quotient of high order are obtained.The convergence and the stability of differential solutions are proved. Especially the restriction conditions to the steplength for the explicit and weakly implicit schemes are found.
【关键词】 Burgers-KdV方程;
显式格式;
弱隐格式;
强隐格式;
【Key words】 Burgers-KdV equation; explicit schemes; weakly implicit schemes; strong implicit schemes;
【Key words】 Burgers-KdV equation; explicit schemes; weakly implicit schemes; strong implicit schemes;
- 【文献出处】 天津师范大学学报(自然科学版) ,Journal of Tianjin Normal University (Natural Science Edition) , 编辑部邮箱 ,2002年03期
- 【分类号】O241.82;O246
- 【被引频次】7
- 【下载频次】97