On the Dirichlet Problem in a Plane Domain with a Cut

Authors

DOI:

https://doi.org/10.52575/2687-0959-2023-55-3-258-264

Keywords:

Pseudo-Differential Equation, Domain with a Cut, Dirichlet Problem, Solvability

Abstract

In the paper, a solvability of a model elliptic pseudo-differential equation in a plane domain with a cut along a ray is studied. Solution is sought in the Sobolev–Slobodetskii space. Using a special factorization for elliptic symbol one writes out a general solution for the equation in a domain with cut sector; this solution includes an arbitrary function. Using the Diriclet condition one reduces finding this function to solution of a system of one-dimensional linear integral equations. Further, one studies a behavior of these equations when the size if sector tends to zero, and the sectors transforms into a ray. As a result one obtains a certain integral equation, and a unique solvability of the equation is equivalent to a solvability of the Dirichlet problem in a plane domain with cut ray.

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Author Biographies

Nataliya N. Agarkova, Belgorod National Research University

Post Graduate Student, Department of Applied Mathematics and Computer Modeling, Belgorod National Research University,
Belgorod, Russia

Vladimir B. Vasilyev, Belgorod National Research University

Doctor of Physical and Mathematical Sciences, Associate Professor, Chair, Department of Applied Mathematics and Computer Modeling, Belgorod National Research University,
Belgorod, Russia

Hadish Gebreslasie, Belgorod National Research University

Post Graduate Student, Department of Applied Mathematics and Computer Modeling, Belgorod
National Research University,
Belgorod, Russia

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Published

2023-09-30

How to Cite

Agarkova, N. N., Vasilyev, V. B., & Gebreslasie, H. (2023). On the Dirichlet Problem in a Plane Domain with a Cut. Applied Mathematics & Physics, 55(3), 258-264. https://doi.org/10.52575/2687-0959-2023-55-3-258-264

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Section

Mathematics

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