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A NONITERATIVE RECONSTRUCTION METHOD FOR THE INVERSE POTENTIAL PROBLEM FOR A TIME-FRACTIONAL DIFFUSION EQUATION.
- Source :
- Topological Methods in Nonlinear Analysis; 2023, Vol. 62 Issue 2, p431-454, 24p
- Publication Year :
- 2023
-
Abstract
- This paper is concerned with the reconstruction of the support of the potential term for a time-fractional diffusion equation from the final measured data. The aim of this paper is to propose an accurate approach based on the topological derivative method. The idea is to formulate the reconstruction problem as a topology optimization one minimizing a given cost function. We derive a topological asymptotic expansion for the fractional model. The unknown support is reconstructed using the level-set curve of the topological gradient. We finally make some numerical examples proving the efficiency and accuracy of the proposed algorithm. [ABSTRACT FROM AUTHOR]
- Subjects :
- TOPOLOGICAL derivatives
COST functions
ASYMPTOTIC expansions
TOPOLOGY
Subjects
Details
- Language :
- English
- ISSN :
- 12303429
- Volume :
- 62
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Topological Methods in Nonlinear Analysis
- Publication Type :
- Academic Journal
- Accession number :
- 175441484
- Full Text :
- https://doi.org/10.12775/TMNA.2023.004