Results 11 to 20 of about 2,201,987 (292)

Point sources identification problems with pointwise overdetermination

open access: yes, 2023
This article is actually a survey of the results obtained in the previous articles of the authors. In some model cases, we discuss the uniqueness and existence results for some classes of inverse problems. The results uses a new approach based on asymptotic representations of the Green function of the corresponding elliptic ...
Pyatkov, Sergey, Neustroeva, Lyubov
openaire   +2 more sources

Hybrid Deep Learning and Sensitivity Operator-Based Algorithm for Identification of Localized Emission Sources

open access: yesMathematics, 2023
Hybrid approaches combining machine learning with traditional inverse problem solution methods represent a promising direction for the further development of inverse modeling algorithms.
Alexey Penenko   +4 more
doaj   +1 more source

Source identification in river pollution problems: A geostatistical approach [PDF]

open access: yesWater Resources Research, 2005
The geostatistical method, formulated in the groundwater field, has been applied to identify contaminant sources in river pollution problems. The problem consists of recovering a contaminant source at a known location from a finite number of concentration measurements.
BOANO, Fulvio   +2 more
openaire   +2 more sources

Numerical solution to elliptic inverse problem with Neumann-type integral condition and overdetermination

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2020
In modeling various real processes, an important role is played by methods of solution source identification problem for partial differential equation.
C. Ashyralyyev, A. Cay
doaj   +1 more source

TIME-DEPENDENT SOURCE IDENTIFICATION SCHR\"{O}DINGER TYPE PROBLEM [PDF]

open access: yesInternational Journal of Apllied Mathematics, 2021
In this study, the source identification problem with non-local boundary conditions for the time-dependent, one-dimensional Schrödinger equation is studied. Stability estimates are constructed for the solution of source identification problem. A first order of accuracy difference scheme is investigated for the numerical solution of this problem. © 2021
Ashyralyev A., Urun M.
openaire   +2 more sources

Stability of the time-dependent identification problem for delay hyperbolic equations [PDF]

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
Time-dependent and space-dependent source identification problems for partial differential and difference equations take an important place in applied sciences and engineering, and have been studied by several authors.
A. Ashyralyev, B. Haso
doaj   +2 more sources

A numerical algorithm for the source identification telegraph problem [PDF]

open access: yesAIP Conference Proceedings, 2021
In the present paper, source identification problem for the telegraph equation is investigated. The first order of accuracy absolute stable difference scheme for the numerical solution of the one dimensional identification problem for the telegraph equation with the Dirichlet condition is presented. Some numerical results are provided.
Ashyralyev A., Al-Hazaimeh H.
openaire   +3 more sources

A note on well-posedness of source identification elliptic problem in a Banach space

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2020
We study the source identification problem for an elliptic differential equation in a Banach space. The exact estimates for the solution of source identification problem in H¨older norms are obtained. In applications, four elliptic source identification
A. Ashyralyev   +2 more
doaj   +1 more source

A Genetic Algorithm for Pointwise Source Reconstruction by the Method of Fundamental Solutions

open access: yesTrends in Computational and Applied Mathematics, 2022
Inverse source reconstruction problems offer great potential for applications of interest to engineering, such as the identification of polluting sources, and to medicine, such as electroencephalography, to cite at least two relevant examples.
J. R. Faria
doaj   +1 more source

A note on the parabolic identification problem with involution and Dirichlet condition

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2020
A space source of identification problem for parabolic equation with involution and Dirichlet condition is studied. The well-posedness theorem on the differential equation of the source identification parabolic problem is established.
A. Ashyralyev, A.S. Erdogan, A. Sarsenbi
doaj   +1 more source

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