Numerical methods for reconstruction of the source term of heat equations from the final overdetermination
Bull. Korean Math. Soc. 2015 Vol. 52, No. 5, 1495-1515
https://doi.org/10.4134/BKMS.2015.52.5.1495
Printed September 30, 2015
Youjun Deng, Xiaoping Fang, and Jing Li
Central South University, Environment-friendly Society and Ecological Civilization, Changsha University of Science and Technology
Abstract : This paper deals with the numerical methods for the reconstruction of the source term in a linear parabolic equation from final overdetermination. We assume that the source term has the form $f(x)h(t)$ and $h(t)$ is given, which guarantees the uniqueness of the inverse problem of determining the source term $f(x)$ from final overdetermination. We present the regularization methods for reconstruction of the source term in the whole real line and with Neumann boundary conditions. Moreover, we show the connection of the solutions between the problem with Neumann boundary conditions and the problem with no boundary conditions (on the whole real line) by using the extension method. Numerical experiments are done for the inverse problem with the boundary conditions.
Keywords : linear parabolic equation, source term, inverse problem, numerical methods
MSC numbers : 35R30, 35C20
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