Least-squares method in the theory of nonlinear boundary-value problems unsolved with respect to the derivative
UDC 517.9 We establish constructive necessary and sufficient conditions of solvability and a scheme for the construction of  solutions for a nonlinear boundary-value problem unsolved with respect to the derivative.  We also suggest convergent iterative schemes...
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| Date: | 2023 |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
| Published: |
Institute of Mathematics, NAS of Ukraine
2023
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| Online Access: | https://umj.imath.kiev.ua/index.php/umj/article/view/7408 |
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| Journal Title: | Ukrains’kyi Matematychnyi Zhurnal |
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Ukrains’kyi Matematychnyi Zhurnal| Summary: | UDC 517.9
We establish constructive necessary and sufficient conditions of solvability and a scheme for the construction of  solutions for a nonlinear boundary-value problem unsolved with respect to the derivative.  We also suggest convergent iterative schemes for finding approximate solutions of this problem.  As an example of application of the proposed iterative scheme, we find approximations to the solutions of periodic boundary-value problems for a Rayleigh-type equation unsolved with respect to the derivative, in particular, in the case of a periodic problem for the equation used to describe the motion of satellites on elliptic orbits. |
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| DOI: | 10.37863/umzh.v75i1.7408 |