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This article is cited in 3 scientific papers (total in 3 papers)
Differential Equations and Mathematical Physics
The Dirichlet problem for mixed type equation with two lines of degeneracy in a rectangular area
A. A. Gimaltdinova Sterlitamak branch of Bashkir State University, Sterlitamak, 453103, Russian Federation
(published under the terms of the Creative Commons Attribution 4.0 International License)
Abstract:
We study the first boundary value problem for the elliptic-hyperbolic type equation with two perpendicular lines of change of type and spectral parameter. We prove the existence and uniqueness of the solution. In the proof of the uniqueness of solution we use the completeness of biorthogonal system in space $ L_2$. When building a solution as the sum of a series there is a problem of small denominators. We obtained estimates of the denominators of the separation from zero.
Keywords:
mixed type equation, Dirichlet problem, uniqueness, existence of a solution, spectral method.
Original article submitted 19/XII/2014 revision submitted – 20/II/2015
Citation:
A. A. Gimaltdinova, “The Dirichlet problem for mixed type equation with two lines of degeneracy in a rectangular area”, Vestn. Samar. Gos. Tekhn. Univ., Ser. Fiz.-Mat. Nauki [J. Samara State Tech. Univ., Ser. Phys. Math. Sci.], 19:4 (2015), 634–649
Linking options:
https://www.mathnet.ru/eng/vsgtu1384 https://www.mathnet.ru/eng/vsgtu/v219/i4/p634
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