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The Simplified Tikhonov Regularization Method for Identifying the Unknown Source for the Modified Helmholtz Equation

机译:简化的Tikhonov正则化方法,用于识别修改的Helmholtz方程的未知源

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摘要

This paper discusses the problem of determining an unknown source which depends only on one variable for the modified Helmholtz equation. This problem is ill-posed in the sense that the solution (if it exists) does not depend continuously on the data. The regularization solution is obtained by the simplified Tikhonov regularization method. Convergence estimate is presented between the exact solution and the regularization solution. Moreover, numerical results are presented to illustrate the accuracy and efficiency of this method.
机译:本文讨论了确定未知源的问题,该源仅依赖于修改后的亥姆霍兹方程的一个变量。从解决方案(如果存在)不连续依赖数据的意义上讲,这个问题是不恰当的。通过简化的Tikhonov正则化方法获得正则化解。在精确解和正则化解之间给出了收敛估计。此外,数值结果表明了该方法的准确性和有效性。

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  • 来源
    《Mathematical Problems in Engineering》 |2011年第2期|p.1-14|共14页
  • 作者单位

    School of Science, Lanzhou University of Technology, Lanzhou, Gansu 730050, China;

    Institute of Education, Lanzhou City University, Lanzhou, Gansu 730070, China;

    School of Science, Lanzhou University of Technology, Lanzhou, Gansu 730050, China;

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