首页> 外文期刊>Advances in Difference Equations >Landweber iterative regularization method for identifying the unknown source of the time-fractional diffusion equation
【24h】

Landweber iterative regularization method for identifying the unknown source of the time-fractional diffusion equation

机译:用于确定时间分数阶扩散方程未知源的Landweber迭代正则化方法

获取原文
       

摘要

In this paper, we investigate an inverse problem to determine an unknown source term that has a separable-variable form in the time-fractional diffusion equation, whereby the data is obtained at a certain time. This problem is ill-posed, and we use the Landweber iterative regularization method to solve this inverse source problem. Two kinds of convergence rates are obtained by using an a priori and an a posteriori regularization parameters choice rules, respectively. Numerical examples are provided to show the effectiveness of the proposed method.
机译:在本文中,我们研究了一个反问题,以确定在时间分数阶扩散方程中具有可分离变量形式的未知源项,从而在特定时间获取数据。这个问题是不适当的,我们使用Landweber迭代正则化方法来解决此逆源问题。分别使用先验和后验正则化参数选择规则获得两种收敛率。数值算例表明了该方法的有效性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号