数学研究及应用2024,Vol.44Issue(3) :359-386.DOI:10.3770/j.issn:2095-2651.2024.03.008

A Modified Tikhonov Regularization Method for a Cauchy Problem of the Biharmonic Equation

Fan YANG Jianming XU Xiaoxiao LI
数学研究及应用2024,Vol.44Issue(3) :359-386.DOI:10.3770/j.issn:2095-2651.2024.03.008

A Modified Tikhonov Regularization Method for a Cauchy Problem of the Biharmonic Equation

Fan YANG 1Jianming XU 1Xiaoxiao LI1
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作者信息

  • 1. School of Science,Lanzhou University of Technology,Gansu 730050,P.R.China
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Abstract

In this paper,the Cauchy problem of biharmonic equation is considered.This problem is ill-posed,i.e.,the solution(if exists)does not depend on the measurable data.Firstly,we give the conditional stability result under the a priori bound assumption for the exact solution.Secondly,a modified Tikhonov regularization method is used to solve this ill-posed problem.Under the a priori and the a posteriori regularization parameter choice rule,the error estimates between the regularization solutions and the exact solution are obtained.Finally,some numerical examples are presented to verify that our method is effective.

Key words

Biharmonic equations/inverse problem/Cauchy problem/Tikhonov regularization method

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基金项目

National Natural Science Foundation of China(11961044)

出版年

2024
数学研究及应用
大连理工大学

数学研究及应用

CSCD
影响因子:0.094
ISSN:2095-2651
参考文献量20
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