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Numerical methods for parameter identification in stationary radiative transfer

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Abstract

We investigate the identification of scattering and absorption rates in the stationary radiative transfer equation. For a stable solution of this parameter identification problem, we consider Tikhonov regularization in Banach spaces. A regularized solution is then defined via an optimal control problem constrained by an integro partial differential equation. By establishing the weak-continuity of the parameter-to-solution map, we are able to ensure the existence of minimizers and thus the well-posedness of the regularization method. In addition, we prove certain differentiability properties, which allow us to construct numerical algorithms for finding the minimizers and to analyze their convergence. Numerical results are presented to support the theoretical findings and illustrate the necessity of the assumptions made in the analysis.

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  1. Department of Mathematics Numerical Analysis and Scientific Computing, Technische Universität Darmstadt, Dolivostr. 15, 64293 , Darmstadt, Germany

    Herbert Egger & Matthias Schlottbom

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  1. Herbert Egger
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  2. Matthias Schlottbom
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Correspondence to Matthias Schlottbom.

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Egger, H., Schlottbom, M. Numerical methods for parameter identification in stationary radiative transfer. Comput Optim Appl 62, 67–83 (2015). https://doi.org/10.1007/s10589-014-9657-9

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