Hypersingular integro-differential equation with quadratic functions in coefficients
https://doi.org/10.29235/1561-2430-2024-60-2-117-131
Abstract
A new linear integro-differential equation of order n ≥ 3, given on a closed curve located in the complex plane, is investigated. Integrals in the equation are understood in the sense of the finite part according to Hadamard. A characteristic feature of the equation is the presence of quadratic functions of a special kind in its coefficients. The equation is reduced first to the boundary value problem of linear conjugation for analytical functions. In the case of its solvability, two linear differential equations should be further solved in the domains of the complex plane with some additional conditions for the solution. All conditions for the solvability of the original equation are explicitly specified. When they are executed, the desired solution is constructed in a closed form. An example is given.
About the Author
A. P. ShilinBelarus
Andrey P. Shilin – Ph. D. (Physics and Mathematics), Associate Professor, Associate Professor of the Department of Higher Mathematics and Mathematical Physics
4, Nezavisimosti Ave., 220030, Minsk
References
1. Zverovich E. I. Solution of the hypersingular integro-differential equation with constant coefficients. Doklady Nacionalnoi Akademii Nauk Belarusi = Proceedings of the National Academy of Sciences of Belarus, 2010, vol. 54, no. 6, pp. 5–8 (in Russian).
2. Zverovich E. I. Generalization of Sohotsky formulas. Vestsі Natsyyanalʼnai akademіі navuk Belarusі. Seryya fіzіkamatematychnykh navuk = Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics series, 2012, no. 2, pp. 24–28 (in Russian).
3. Shilin A. P. On the solution of one integro-differential equation with singular and hypersingular integrals. Vestsі Natsyyanalʼnai akademіі navuk Belarusі. Seryya fіzіka-matematychnykh navuk = Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics series, 2020, vol. 56, no. 3, pp. 298–309 (in Russian). https://doi.org/10.29235/1561-2430-2020-56-3-298-309
4. Shilin A. P. A hypersingular integro-differential equations of the Euler type. Vestsі Natsyyanalʼnai akademіі navuk Belarusі. Seryya fіzіka-matematychnykh navuk = Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics series, 2020, vol. 56, no. 1, pp. 17–29 (in Russian). https://doi.org/10.29235/1561-2430-2020-56-1-17-29
5. Shilin A. P. Hypersingular integro-differential equation with power factors in coefficients. Zhurnal Belorusskogo gosudarstvennogo universiteta. Matematika. Informatika = Journal of the Belarusian State University. Mathematics and Informatics, 2019, no. 3, pp. 48–56 (in Russian). https://doi.org/10.33581/2520-6508-2019-3-48-56
6. Gakhov F. D. Boundary Value Problems. Moscow, Nauka Publ., 1977. 640 p. (in Russian).
7. Zaytsev V. F., Polyanin A. D. Handbook of Ordinary Differential Equations. Moscow, Fizmatlit Publ., 2001. 576 p. (in Russian).