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Inverse Problem for a Distributed System from Pulse Technology

  • COMPUTER METHODS
  • Published:
Journal of Computer and Systems Sciences International Aims and scope

Abstract

An inverse problem with distributed parameters for the process of the self-focusing of cylindrical X-ray pulses in a plasma is considered, and a mathematical model of the studied process in a cylindrical coordinate system is described, taking into account the symmetry of the pulse relative to the direction of its propagation. A similar process in the case of plane pulses is compared, a computational method for solving the direct problem of interaction between the plasma and pulse for the given parameter values is presented, the second order of approximation and the asymptotic stability of the constructed difference scheme are proved. It is proposed to use the equivalence set method to solve the inverse problem of determining the initial parameters of the plasma and pulse from the shape of a cylindrical X-ray pulse passing through it and the dynamics of its maximum intensity. Using this problem as an example, an algorithm for using the equivalence set method to solve inverse problems is described.

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  1. Federal Research Center “Computer Science and Control,” Russian Academy of Sciences, 119333, Moscow, Russia

    R. V. Khachaturov

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Khachaturov, R.V. Inverse Problem for a Distributed System from Pulse Technology. J. Comput. Syst. Sci. Int. 62, 991–1010 (2023). https://doi.org/10.1134/S1064230723060060

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