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Direct and inverse problems for the Poisson equation with equality of flows on a part of the boundary

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Abstract
In the paper we consider a stationary diffusion problem described by the Poisson equation. The problem is considered in a model domain, chosen as a half disk. Classical Dirichlet boundary conditions are set on the arc of the circle. New nonlocal boundary conditions are set on the bottom base. The first condition means the equality of flows through opposite radii, and the second condition is the proportionality of distribution densities on these radii with a variable coefficient of proportionality. Uniqueness and existence of the classical solution to the problem are proved. An inverse problem for the solution to the Poisson equation and its right-hand part depending only on an angular variable are considered. As an additional condition we use the boundary overdetermination. Inverse problems to the Dirichlet and Neumann problems, and to problems with nonlocal conditions of the equality of flows through the opposite radii are considered. The well-posedness of the formulated inverse problems is proved.
Keywords
Applied Mathematics, Analysis, Numerical Analysis, Computational Mathematics, Poisson equation, Dirichlet problem, Neumann problem, nonlocal boundary conditions, inverse problem, boundary overdetermination, CAUCHY-PROBLEM, HELMHOLTZ-EQUATION, SOLVABILITY, FLUXES

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MLA
Sadybekov, Makhmud, and Aishabibi Dukenbayeva. “Direct and Inverse Problems for the Poisson Equation with Equality of Flows on a Part of the Boundary.” COMPLEX VARIABLES AND ELLIPTIC EQUATIONS, vol. 64, no. 5, 2019, pp. 777–91, doi:10.1080/17476933.2018.1517340.
APA
Sadybekov, M., & Dukenbayeva, A. (2019). Direct and inverse problems for the Poisson equation with equality of flows on a part of the boundary. COMPLEX VARIABLES AND ELLIPTIC EQUATIONS, 64(5), 777–791. https://doi.org/10.1080/17476933.2018.1517340
Chicago author-date
Sadybekov, Makhmud, and Aishabibi Dukenbayeva. 2019. “Direct and Inverse Problems for the Poisson Equation with Equality of Flows on a Part of the Boundary.” COMPLEX VARIABLES AND ELLIPTIC EQUATIONS 64 (5): 777–91. https://doi.org/10.1080/17476933.2018.1517340.
Chicago author-date (all authors)
Sadybekov, Makhmud, and Aishabibi Dukenbayeva. 2019. “Direct and Inverse Problems for the Poisson Equation with Equality of Flows on a Part of the Boundary.” COMPLEX VARIABLES AND ELLIPTIC EQUATIONS 64 (5): 777–791. doi:10.1080/17476933.2018.1517340.
Vancouver
1.
Sadybekov M, Dukenbayeva A. Direct and inverse problems for the Poisson equation with equality of flows on a part of the boundary. COMPLEX VARIABLES AND ELLIPTIC EQUATIONS. 2019;64(5):777–91.
IEEE
[1]
M. Sadybekov and A. Dukenbayeva, “Direct and inverse problems for the Poisson equation with equality of flows on a part of the boundary,” COMPLEX VARIABLES AND ELLIPTIC EQUATIONS, vol. 64, no. 5, pp. 777–791, 2019.
@article{8665957,
  abstract     = {{In the paper we consider a stationary diffusion problem described by the Poisson equation. The problem is considered in a model domain, chosen as a half disk. Classical Dirichlet boundary conditions are set on the arc of the circle. New nonlocal boundary conditions are set on the bottom base. The first condition means the equality of flows through opposite radii, and the second condition is the proportionality of distribution densities on these radii with a variable coefficient of proportionality. Uniqueness and existence of the classical solution to the problem are proved. An inverse problem for the solution to the Poisson equation and its right-hand part depending only on an angular variable are considered. As an additional condition we use the boundary overdetermination. Inverse problems to the Dirichlet and Neumann problems, and to problems with nonlocal conditions of the equality of flows through the opposite radii are considered. The well-posedness of the formulated inverse problems is proved.}},
  author       = {{Sadybekov, Makhmud and Dukenbayeva, Aishabibi}},
  issn         = {{1747-6933}},
  journal      = {{COMPLEX VARIABLES AND ELLIPTIC EQUATIONS}},
  keywords     = {{Applied Mathematics,Analysis,Numerical Analysis,Computational Mathematics,Poisson equation,Dirichlet problem,Neumann problem,nonlocal boundary conditions,inverse problem,boundary overdetermination,CAUCHY-PROBLEM,HELMHOLTZ-EQUATION,SOLVABILITY,FLUXES}},
  language     = {{eng}},
  number       = {{5}},
  pages        = {{777--791}},
  title        = {{Direct and inverse problems for the Poisson equation with equality of flows on a part of the boundary}},
  url          = {{http://doi.org/10.1080/17476933.2018.1517340}},
  volume       = {{64}},
  year         = {{2019}},
}

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