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具Robin条件的高维扩散方程反问题正则化算法

郭琴 徐定华

宁夏大学学报(自然科学版)2024,Vol.45Issue(2):97-106,10.
宁夏大学学报(自然科学版)2024,Vol.45Issue(2):97-106,10.

具Robin条件的高维扩散方程反问题正则化算法

Regularization Algorithms for Inverse Problems of High-dimensional Diffusion Equations with Robin Boundary Conditions

郭琴 1徐定华1

作者信息

  • 1. 浙江理工大学 理学院,浙江 杭州 310018
  • 折叠

摘要

Abstract

The simultaneous identification of the initial heat field and the heat source is a class of inverse prob-lems in heat conduction equations.By utilizing temperature measurements at two fixed moments,an improved regularization method is proposed to stably determine both the initial temperature and heat source terms.A sta-bilization algorithm is thus obtained.Strategies for selecting regularization parameters and error estimates for the regularization solutions are provided.Additionally,pre-processing is performed on the measurement data with noise interference to improve accuracy.Numerical experiments verify the effectiveness of the algorithm.

关键词

高维热传导方程/Robin边界条件/改进正则化方法/数据预处理/误差估计

Key words

high-dimensional heat conduction equations/Robin boundary conditions/improved regularization methods/data pre-processing/error estimation

分类

数理科学

引用本文复制引用

郭琴,徐定华..具Robin条件的高维扩散方程反问题正则化算法[J].宁夏大学学报(自然科学版),2024,45(2):97-106,10.

基金项目

国家自然科学基金资助项目(12371428,11871435) (12371428,11871435)

宁夏大学学报(自然科学版)

OACSTPCD

0253-2328

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