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Mixed problem for a one-dimensional wave equation with conjugation conditions and second-order derivatives in boundary conditions

https://doi.org/10.29235/1561-2430-2020-56-3-287-297

Abstract

In this paper, we consider the boundary problem for the half-strip on the plane for the case of two independent variables. This mixed problem is solved for a one-dimensional wave equation with Cauchy conditions on the basis of the half-strip and boundary conditions for lateral parts of the area border containing second-order derivatives. Moreover, the conjugation conditions are specified for the required function and its derivatives for the case when the homogeneous matching conditions are not satisfied. A classical solution to this problem is found in an analytical form by the characteristics method. This solution is approved to be unique if the relevant conditions are fulfilled.

About the Authors

V. I. Korzyuk
Institute of Mathematics of the National Academy of Sciences of Belarus; Belarusian State University
Belarus

Viktor I. Korzyuk – Academician, Professor, Dr. Sc. (Physics and Mathematics)

11, Surganov Str., 220072, Minsk

4, Nezavisimosti Ave., 220030, Minsk



S. N. Naumavets
Brest State Technical University
Belarus

Sviatlana N. Naumavets – Senior Lecturer

267, Moskovskaya Str., 224017, Brest



V. P. Serikov
Institute of Mathematics of the National Academy of Sciences of Belarus
Belarus

Vladimir P. Serikov – Lead Software Engineer

11, Surganov Str., 220072, Minsk



References

1. Korzyuk V. I., Naumavets S. N., Sevastyuk V. A. Classical solution of the mixed problem for a one-dimensional wave equation with second-order derivatives at boundary conditions. Vestsі Natsyianal’nai akademіі navuk Belarusі. Seryia fіzіka-matematychnykh navuk = Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics series, 2019, vol. 55, no. 4, pp. 406–412 (in Russian). https://doi.org/10.29235/1561-2430-2019-55-4-406-412

2. Korzyuk V. I., Kozlovskaya I. S., Naumavets S. N. Classical solution to the first mixed problem for the one-dimensional wave equation with the cauchy-type conditions. Vestsi Natcyianal’nai akademii navuk Belarusi. Seriya fizika-matematychnykh navuk = Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics series, 2015, no. 1, pp. 7–20 (in Russian).

3. Korzyuk V. I., Naumavets S. N. Classical solution of a mixed problem for a one-dimensional wave equation with higher-order derivatives in the boundary conditions. Doklady Natsional’noi akademii nauk Belarusi = Doklady of the National Academy of Sciences of Belarus, 2016, vol. 60, no. 3, pp. 11–17 (in Russian).

4. Korzyuk V. I, Naumavets S. N., Sevastyuk V. A. On the classical solution of the second mixed problem for a one-dimensional wave equation. Trudy Instituta matematiki = Proceedings of the Institute of Mathematics, 2018, vol. 26, no. 1, pp. 35–42 (in Russian).

5. Korzyuk V. I, Naumavets S. N., Serikov V. P. The method of the characteristic parallelogram of the solution of the second mixed problem for the one-dimensional wave equation. Trudy Instituta matematiki = Proceedings of the Institute of Mathematics, 2018, vol. 26, no. 1, pp. 43–53 (in Russian).

6. Korzyuk V. I. Equations of Mathematical Physics. Minsk, BSU Publishing Center, 2011. 460 p. (in Russian).

7. Moiseev E. I., Korzyuk V. I., Kozlovskaya I. S. Classical solution of a problem with an integral condition for the onedimensional wave equation. Differential Equations, vol. 50, no. 10, pp. 1364– 1377. https://doi.org/10.1134/s0012266114100103

8. Korzyuk V. I. Solution of the mixed problem for the one-dimensional wave equation with the use of the characteristic parallelogram method. Doklady Natsional’noi akademii nauk Belarusi = Doklady of the National Academy of Sciences of Belarus, 2017, vol. 61, no. 3, pp. 7–13 (in Russian).


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ISSN 1561-2430 (Print)
ISSN 2524-2415 (Online)