Data Recovery from Cauchy Measurements in Transient Heat Transfer

Data Recovery from Cauchy Measurements in Transient Heat Transfer

Year:    2022

Author:    Thouraya Baranger Nouri, Faker Ben Belgacem

Journal of Mathematical Study, Vol. 55 (2022), Iss. 1 : pp. 38–53

Abstract

We study the ill-posedness degree of the reconstruction processes of missing boundary data or initial states in the transient heat conduction. Both problems are severely ill-posed. This is a powerful indicator about the way the instabilities will affect the computations in the numerical recovery methods. We provide rigorous proofs of this result where the conductivites are space dependent. The theoretical work is concerned with the unsteady heat equation in one dimension even though most of the results obtained here are readily extended to higher dimensions.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/jms.v55n1.22.03

Journal of Mathematical Study, Vol. 55 (2022), Iss. 1 : pp. 38–53

Published online:    2022-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    16

Keywords:    Data completion process ill-posedness degree Cauchy matrix convolution equations parabolic regularity.

Author Details

Thouraya Baranger Nouri

Faker Ben Belgacem