arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1704.00525math.NAcs.NA
收藏

变分法在椭圆偏微分方程多重参数识别中的应用

Variational method for multiple parameter identification in elliptic PDEs

University of Hamburg(汉堡大学);University of Goettingen(哥廷根大学)

Tran Nhan Tam Quyen

AI总结:

本文研究了通过测量数据同时识别椭圆偏微分方程的扩散矩阵、源项、边界条件及状态的逆问题,采用基于能量函数的变分法结合Tikhonov正则化进行处理,并通过有限元方法离散PDE并分析收敛性与误差界。

摘要:

在本文中,我们研究了从测量数据中同时识别椭圆偏微分方程(PDE)的扩散矩阵、源项、边界条件以及状态的逆问题,该问题的要求比精确状态所要求的要弱。本文提出了一种基于能量函数的变分法结合Tikhonov正则化来处理识别问题。我们用有限元方法离散PDE,并证明了该方法的收敛性,并分析了该方法的误差界。

英文摘要:

In the present paper we investigate the inverse problem of identifying simultaneously the diffusion matrix, source term and boundary condition as well as the state in the Neumann boundary value problem for an elliptic partial differential equation (PDE) from a measurement data, which is weaker than required of the exact state. A variational method based on energy functions with Tikhonov regularization is here proposed to treat the identification problem. We discretize the PDE with the finite element method and prove the convergence as well as analyse error bounds of this approach.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑