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A Mollification Regularization Method for a Fractional-Diffusion Inverse Heat Conduction Problem

机译:分式扩散反导热问题的一种化正则化方法

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摘要

The ill-posed problem of attempting to recover the temperature functions from one measured transient data temperature at some interior point of a one-dimensional semi-infinite conductor when the governing linear diffusion equation is of fractional type is discussed. A simple regularization method based on Dirichlet kernel mollification techniques is introduced. We also propose a priori and a posteriori parameter choice rules and get the corresponding error estimate between the exact solution and its regularized approximation. Moreover, a numerical example is provided to verify our theoretical results.
机译:讨论了当控制线性扩散方程为分数形式时,试图从一维半无限导体的某个内部点的一个测得的瞬态数据温度恢复温度函数的不适定问题。介绍了一种基于Dirichlet核简化技术的简单正则化方法。我们还提出了先验和后验参数选择规则,并获得了精确解与其正则逼近之间的相应误差估计。此外,提供了一个数值示例来验证我们的理论结果。

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  • 来源
    《Mathematical Problems in Engineering》 |2013年第1期|109340.1-109340.9|共9页
  • 作者单位

    School of Mathematical Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China;

    School of Mathematics, Southwest Jiaotong University, Chengdu 610031, China;

    Department of Mathematical Sciences, Xidian University, Xi'an 710071, China;

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