Geodesic
Problem of partial identification of unknown medium
Dalʹnevostočnyj matematičeskij žurnal, Tome 19 (2019) no. 1, pp. 43-62.

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The paper deals with the problem of partial identification of an unknown medium chemical composition by the method of repeated scanning of this medium by collimated x-ray flux. A mathematical model for the problem of identification is formulated and its comparison with the task of finding the chemical composition of the medium carried out. A method for solving the problem of identification is based on the construction of a special function, called the indicator of distinguishability of substances. By way of illustration, results of calculations performed for various specific groups of chemical elements are presented. 
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V. G. Nazarov. Problem of partial identification of unknown medium. Dalʹnevostočnyj matematičeskij žurnal, Tome 19 (2019) no. 1, pp. 43-62. http://geodesic.mathdoc.fr/item/DVMG_2019_19_1_a6/

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