Numerical treatment of a time dependent inverse problem in photon transport
Bollettino della Unione matematica italiana, Série 8, 8B (2005) no. 3, pp. 773-779.

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The time-dependent intensity of a UV-photon source, located inside an interstellar cloud, is determined by formulating and solving an inverse problem for the integro-differential transport equation of photons in a one-dimensional slab. Starting from a discretizazion of the forward problem, an iterative procedure is used to compute the values of the source intensity at increasing values of the time.
Si studia un problema inverso unidimensionale per un'equazione integro-differenziale del trasporto di fotoni, e si determinano le proprietà di una sorgente di fotoni ultravioletti immersa in una nube interstellare. Un procedimento iterativo che si basa sulla discretizzazione spazio-temporale del problema diretto, porta alla determinazione della intensità della sorgente e delle sue variazioni al crescere del tempo.
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Pieraccini, S.; Riganti, R.; Belleni-Morante, A. Numerical treatment of a time dependent inverse problem in photon transport. Bollettino della Unione matematica italiana, Série 8, 8B (2005) no. 3, pp. 773-779. http://geodesic.mathdoc.fr/item/BUMI_2005_8_8B_3_a15/

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