A modified Cauchy problem for an inhomogeneous equation of degenerate hyperbolic type of the second kind
- Authors: Urinov A.K.1,2, Okboev A.B.3
-
Affiliations:
- Fergana State University
- V.I. Romanovskiy Institute of Mathematics of the Academy of Sciences of the Republic of Uzbekistan
- V.I. Romanovskiy Institute of Mathematics of the Academy of Sciences of the Republic of Uzbekistan
- Issue: Vol 28, No 1 (2024)
- Pages: 45-58
- Section: Differential Equations and Mathematical Physics
- URL: https://journal-vniispk.ru/1991-8615/article/view/310997
- DOI: https://doi.org/10.14498/vsgtu2024
- EDN: https://elibrary.ru/WZQYTV
- ID: 310997
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Abstract
In this study, a modified Cauchy problem was examined for an inhomogeneous equation of degenerate hyperbolic type of the second kind in a characteristic triangle. It is known that degenerate hyperbolic equations have a singularity, meaning that the well-posedness of the Cauchy problem with initial data on the line of parabolic degeneracy does not always hold for them. Therefore, in such cases, it is necessary to consider the problem with initial conditions in a modified form.
In present paper, modified Cauchy problems with initial conditions were formulated on the line of parabolic degeneracy for an inhomogeneous equation of degenerate hyperbolic type of the second kind. The considered problem is reduced to a modified Cauchy problem for a homogeneous equation and to a Cauchy problem for an inhomogeneous equation with zero initial conditions. The solutions of the modified Cauchy problem for a homogeneous equation are derived from the general solution of the considered equation. The explicit solutions of the modified Cauchy problem with homogeneous conditions for the inhomogeneous equation are found using the Riemann
method.
It is proven that the discovered solutions indeed satisfy the equation and the initial conditions.
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##article.viewOnOriginalSite##About the authors
Akhmadjon K. Urinov
Fergana State University; V.I. Romanovskiy Institute of Mathematics of the Academy of Sciences of the Republic of Uzbekistan
Email: urinovak@mail.com
ORCID iD: 0000-0002-9586-1799
Scopus Author ID: 19639412400
https://www.mathnet.ru/person30024
Dr. Phys. & Math. Sci., Professor; Head of Department; Dept. of Mathematical Analysis and Differential Equations; Leading Researcher
Uzbekistan, 150100, Ferghana, Murabbiylar st., 19; 100174, Tashkent, University st., 46Akmaljon B. Okboev
V.I. Romanovskiy Institute of Mathematicsof the Academy of Sciences of the Republic of Uzbekistan
Author for correspondence.
Email: akmaljon12012@gmail.com
ORCID iD: 0000-0002-5544-3111
Scopus Author ID: 57216342298
https://www.mathnet.ru/person117934
PhD (Phys. & Math. Sci.); Senior Researcher
Uzbekistan, 100174, Tashkent, University st., 46References
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