带记忆的非线性退化抛物方程中源项的识别

Pub Date : 2024-02-07 DOI:10.21136/AM.2024.0049-23
Soufiane Abid, Khalid Atifi, El-Hassan Essoufi, Abderrahim Zafrar
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引用次数: 0

摘要

摘要 在这项工作中,我们考虑了一个布尔格斯(Burgers)型非线性抛物方程的反向问题,该方程带有来自最终数据的记忆项。为此,我们首先建立了直接问题的良好拟合。在最优控制框架的基础上,建立了成本函数最小化的存在性和必要条件。根据必要条件推导出最小值的全局唯一性和稳定性。数值实验证明了这种方法的有效性。
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Identification of source term in a nonlinear degenerate parabolic equation with memory

In this work, we consider an inverse backward problem for a nonlinear parabolic equation of the Burgers’ type with a memory term from final data. To this aim, we first establish the well-posedness of the direct problem. On the basis of the optimal control framework, the existence and necessary condition of the minimizer for the cost functional are established. The global uniqueness and stability of the minimizer are deduced from the necessary condition. Numerical experiments demonstrate the effectiveness of this approach.

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