On a second-order integro-differential equation with difference kernels and power nonlinearity
The article studies a second-order integro-differential equation with difference kernels and power nonlinearity. A connection is established between this equation and an integral equation of the convolution type, which arises when describing the processes of liquid infiltration from a cylindrical r...
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| Format: | Article |
| Language: | English |
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Academician Ye.A. Buketov Karaganda University
2022-06-01
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| Series: | Қарағанды университетінің хабаршысы. Математика сериясы |
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| Online Access: | http://mathematics-vestnik.ksu.kz/index.php/mathematics-vestnik/article/view/497 |
| _version_ | 1797372679407271936 |
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| author | S.N. Askhabov |
| author_facet | S.N. Askhabov |
| author_sort | S.N. Askhabov |
| collection | DOAJ |
| description |
The article studies a second-order integro-differential equation with difference kernels and power nonlinearity. A connection is established between this equation and an integral equation of the convolution type, which arises when describing the processes of liquid infiltration from a cylindrical reservoir into an isotropic homogeneous porous medium, the propagation of shock waves in pipes filled with gas and others. Since non-negative continuous solutions of this integral equation are of particular interest from an applied point of view, solutions of the corresponding integro-differential equation are sought in the cone of the space of continuously differentiable functions. Two-sided a priori estimates are obtained for any solution of the indicated integral equation, based on which the global theorem of existence and uniqueness of the solution is proved by the method of weighted metrics. It is shown that any solution of this integro-differential equation is simultaneously a solution of the integral equation and vice versa, under the additional condition on the kernel that any solution of this integral equation is a solution of this integro-differential equation. Using these results, a global theorem on the existence, uniqueness and method of finding a solution to an integrodifferential equation is proved. It is shown that this solution can be found by the method of successive approximations of the Picard type and an estimate for the rate of their convergence is established. Examples are given to illustrate the obtained results.
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| first_indexed | 2024-03-08T18:39:17Z |
| format | Article |
| id | doaj.art-c1f9457057b544bea214bc34d33995b3 |
| institution | Directory Open Access Journal |
| issn | 2518-7929 2663-5011 |
| language | English |
| last_indexed | 2024-03-08T18:39:17Z |
| publishDate | 2022-06-01 |
| publisher | Academician Ye.A. Buketov Karaganda University |
| record_format | Article |
| series | Қарағанды университетінің хабаршысы. Математика сериясы |
| spelling | doaj.art-c1f9457057b544bea214bc34d33995b32023-12-29T10:19:26ZengAcademician Ye.A. Buketov Karaganda UniversityҚарағанды университетінің хабаршысы. Математика сериясы2518-79292663-50112022-06-01106210.31489/2022m2/38-48On a second-order integro-differential equation with difference kernels and power nonlinearityS.N. Askhabov The article studies a second-order integro-differential equation with difference kernels and power nonlinearity. A connection is established between this equation and an integral equation of the convolution type, which arises when describing the processes of liquid infiltration from a cylindrical reservoir into an isotropic homogeneous porous medium, the propagation of shock waves in pipes filled with gas and others. Since non-negative continuous solutions of this integral equation are of particular interest from an applied point of view, solutions of the corresponding integro-differential equation are sought in the cone of the space of continuously differentiable functions. Two-sided a priori estimates are obtained for any solution of the indicated integral equation, based on which the global theorem of existence and uniqueness of the solution is proved by the method of weighted metrics. It is shown that any solution of this integro-differential equation is simultaneously a solution of the integral equation and vice versa, under the additional condition on the kernel that any solution of this integral equation is a solution of this integro-differential equation. Using these results, a global theorem on the existence, uniqueness and method of finding a solution to an integrodifferential equation is proved. It is shown that this solution can be found by the method of successive approximations of the Picard type and an estimate for the rate of their convergence is established. Examples are given to illustrate the obtained results. http://mathematics-vestnik.ksu.kz/index.php/mathematics-vestnik/article/view/497integro-differential equationpower nonlinearitydifference kernelsweight metrics method |
| spellingShingle | S.N. Askhabov On a second-order integro-differential equation with difference kernels and power nonlinearity Қарағанды университетінің хабаршысы. Математика сериясы integro-differential equation power nonlinearity difference kernels weight metrics method |
| title | On a second-order integro-differential equation with difference kernels and power nonlinearity |
| title_full | On a second-order integro-differential equation with difference kernels and power nonlinearity |
| title_fullStr | On a second-order integro-differential equation with difference kernels and power nonlinearity |
| title_full_unstemmed | On a second-order integro-differential equation with difference kernels and power nonlinearity |
| title_short | On a second-order integro-differential equation with difference kernels and power nonlinearity |
| title_sort | on a second order integro differential equation with difference kernels and power nonlinearity |
| topic | integro-differential equation power nonlinearity difference kernels weight metrics method |
| url | http://mathematics-vestnik.ksu.kz/index.php/mathematics-vestnik/article/view/497 |
| work_keys_str_mv | AT snaskhabov onasecondorderintegrodifferentialequationwithdifferencekernelsandpowernonlinearity |