Journal
COMPUTERS & MATHEMATICS WITH APPLICATIONS
Volume 137, Issue -, Pages 44-60Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.camwa.2023.02.014
Keywords
Backward problem; Time-fractional diffusion-wave equation; Iterative regularization method; Error estimates
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In this paper, we address the ill-posed backward problem of an inhomogeneous time-fractional diffusion-wave equation in an axis-symmetric cylinder. To achieve stable solutions, we propose an iterative regularization method and derive Holder error estimates using a-priori and a-posteriori parameter choice rules. Numerical examples are provided to validate the effectiveness of our approach.
In this paper, we consider the backward problem for an inhomogeneous time-fractional diffusion-wave equation in an axis-symmetric cylinder. This problem is ill-posed. In order to solve it stably, we give an iterative regularization method. The Holder error estimates are obtained under the a-priori and a-posteriori parameter choice rules. Numerical examples are presented to verify the effectiveness of our method.
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