The quasi-reversibility method for a final value problem of the time-fractional diffusion equation with inhomogeneous source

被引:27
|
作者
Yang, Fan [1 ]
Ren, Yu-Peng [1 ]
Li, Xiao-Xiao [1 ]
机构
[1] Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China
基金
中国国家自然科学基金;
关键词
inhomogeneous source; ill-posed problem; regularization method; time-fractional backward diffusion problem; FINITE-DIFFERENCE APPROXIMATIONS; BOUNDARY VALUE METHOD; ANOMALOUS DIFFUSION; BACKWARD PROBLEM; SPACE; REGULARIZATION;
D O I
10.1002/mma.4705
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
This paper is devoted to discuss a multidimensional backward heat conduction problem for time-fractional diffusion equation with inhomogeneous source. This problem is ill-posed. We use quasi-reversibility regularization method to solve this inverse problem. Moreover, the convergence estimates between regularization solution and the exact solution are obtained under the a priori and the a posteriori choice rules. Finally, the numerical examples for one-dimensional and two-dimensional cases are presented to show that our method is feasible and effective.
引用
收藏
页码:1774 / 1795
页数:22
相关论文
共 50 条
  • [31] On the convergence rate of an improved quasi-reversibility method for an inverse source problem of a nonlinear parabolic equation with nonlocal diffusion coefficient
    Wang, Yuchan
    Wu, Bin
    APPLIED MATHEMATICS LETTERS, 2021, 121
  • [32] A MODIFIED QUASI-BOUNDARY VALUE METHOD FOR THE BACKWARD TIME-FRACTIONAL DIFFUSION PROBLEM
    Wei, Ting
    Wang, Jun-Gang
    ESAIM-MATHEMATICAL MODELLING AND NUMERICAL ANALYSIS-MODELISATION MATHEMATIQUE ET ANALYSE NUMERIQUE, 2014, 48 (02): : 603 - 621
  • [33] VARIATIONAL METHOD FOR A BACKWARD PROBLEM FOR A TIME-FRACTIONAL DIFFUSION EQUATION
    Wei, Ting
    Xian, Jun
    ESAIM-MATHEMATICAL MODELLING AND NUMERICAL ANALYSIS-MODELISATION MATHEMATIQUE ET ANALYSE NUMERIQUE, 2019, 53 (04): : 1223 - 1244
  • [34] FILTER REGULARIZATION FOR AN INVERSE SOURCE PROBLEM OF THE TIME-FRACTIONAL DIFFUSION EQUATION
    Shi, Wan-Xia
    Xiong, Xiang-Tuan
    JOURNAL OF APPLIED ANALYSIS AND COMPUTATION, 2023, 13 (04): : 1702 - 1719
  • [35] An Inverse Source Problem with Sparsity Constraint for the Time-Fractional Diffusion Equation
    Ruan, Zhousheng
    Yang, Zhijian
    Lu, Xiliang
    ADVANCES IN APPLIED MATHEMATICS AND MECHANICS, 2016, 8 (01) : 1 - 18
  • [36] Regularization of a sideways problem for a time-fractional diffusion equation with nonlinear source
    Tran Bao Ngoc
    Nguyen Huy Tuan
    Kirane, Mokhtar
    JOURNAL OF INVERSE AND ILL-POSED PROBLEMS, 2020, 28 (02): : 211 - 235
  • [37] An Inverse Source Problem For a Two Terms Time-fractional Diffusion Equation
    Dib, Fatima
    Kirane, Mokhtar
    BOLETIM SOCIEDADE PARANAENSE DE MATEMATICA, 2022, 40
  • [38] An inverse source problem for distributed order time-fractional diffusion equation
    Sun, Chunlong
    Liu, Jijun
    INVERSE PROBLEMS, 2020, 36 (05)
  • [39] An inverse time-dependent source problem for a time-fractional diffusion equation
    Wei, T.
    Li, X. L.
    Li, Y. S.
    INVERSE PROBLEMS, 2016, 32 (08)
  • [40] An inverse coefficient-source problem for a time-fractional diffusion equation
    Settara, Loubna
    Atmania, Rahima
    INTERNATIONAL JOURNAL OF APPLIED MATHEMATICS & STATISTICS, 2018, 57 (03): : 68 - 78