A modified quasi-reversibility method for inverse source problem of Poisson equation. Issue 12 (2nd December 2021)

• Record Type: Journal Article
• Authors: Wen, Jin; Huang, Li-Ming; Liu, Zhuan-Xia
• Is Part Of: Inverse problems in science and engineering. Volume 29:Issue 12(2021)
• Page Start: 2098
• Page End: 2109
• Publication Date: 2021-12-02
• Subjects: Inverse source problem -- Poisson equation -- a modified quasi-reversibility regularization method -- a priori choice -- convergence analysis; 35R30 -- 65N20; Engineering mathematics -- Periodicals; Inverse problems (Differential equations) -- Periodicals; 620.001515357
• DOI: 10.1080/17415977.2021.1902516
• Languages: English
• ISSNs: 1741-5977

Abstract

ABSTRACT: In this article, we consider an inverse source problem for Poisson equation in a strip domain. That is to determine source term in the Poisson equation from a noisy boundary data. This is an ill-posed problem in the sense of Hadamard, i.e., small changes in the data can cause arbitrarily large changes in the results. Before we give the main results about our proposed problem, we display some useful lemmas at first. Then we propose a modified quasi-reversibility regularization method to deal with the inverse source problem and obtain a convergence rate by using an a priori regularization parameter choice rule. Numerical examples are provided to show the effectiveness of the proposed method.