The Maximum Domain for an Analytical Approximate Solution to a Nonlinear Differential Equation in the Neighborhood of a Moving Singular Point

This paper presents the final stage in the study of the analytical approximate solution to a class of nonlinear differential equations unsolvable in quadrature in the general case in the neighborhood of a perturbed value of a moving singular point. An a priori error estimation is proven. The scope o...

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Main Authors: Victor Orlov, Magomedyusuf Gasanov
Format: Article
Language:English
Published: MDPI AG 2023-08-01
Series:Axioms
Subjects:
Online Access:https://www.mdpi.com/2075-1680/12/9/844
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author Victor Orlov
Magomedyusuf Gasanov
author_facet Victor Orlov
Magomedyusuf Gasanov
author_sort Victor Orlov
collection DOAJ
description This paper presents the final stage in the study of the analytical approximate solution to a class of nonlinear differential equations unsolvable in quadrature in the general case in the neighborhood of a perturbed value of a moving singular point. An a priori error estimation is proven. The scope of application of the analytical approximate solution is extended; the formula for calculating this scope is obtained. The proof of the theorem is based on the application of elements of differential calculus. Theoretical results are supported by numerical calculations, which validate their reliability. The authors report a numerical comparison between the results, obtained in the paper, and the findings that were published earlier.
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spelling doaj.art-a7160811c65a4137b526906a7244e1d62023-11-19T09:32:30ZengMDPI AGAxioms2075-16802023-08-0112984410.3390/axioms12090844The Maximum Domain for an Analytical Approximate Solution to a Nonlinear Differential Equation in the Neighborhood of a Moving Singular PointVictor Orlov0Magomedyusuf Gasanov1Institute of Digital Technologies and Modeling in Construction, Moscow State University of Civil Engineering, Yaroslavskoye Shosse, 26, 129337 Moscow, RussiaInstitute of Digital Technologies and Modeling in Construction, Moscow State University of Civil Engineering, Yaroslavskoye Shosse, 26, 129337 Moscow, RussiaThis paper presents the final stage in the study of the analytical approximate solution to a class of nonlinear differential equations unsolvable in quadrature in the general case in the neighborhood of a perturbed value of a moving singular point. An a priori error estimation is proven. The scope of application of the analytical approximate solution is extended; the formula for calculating this scope is obtained. The proof of the theorem is based on the application of elements of differential calculus. Theoretical results are supported by numerical calculations, which validate their reliability. The authors report a numerical comparison between the results, obtained in the paper, and the findings that were published earlier.https://www.mdpi.com/2075-1680/12/9/844nonlinearity aspectperturbation of a moving singular pointscope of applicationa priori estimation
spellingShingle Victor Orlov
Magomedyusuf Gasanov
The Maximum Domain for an Analytical Approximate Solution to a Nonlinear Differential Equation in the Neighborhood of a Moving Singular Point
Axioms
nonlinearity aspect
perturbation of a moving singular point
scope of application
a priori estimation
title The Maximum Domain for an Analytical Approximate Solution to a Nonlinear Differential Equation in the Neighborhood of a Moving Singular Point
title_full The Maximum Domain for an Analytical Approximate Solution to a Nonlinear Differential Equation in the Neighborhood of a Moving Singular Point
title_fullStr The Maximum Domain for an Analytical Approximate Solution to a Nonlinear Differential Equation in the Neighborhood of a Moving Singular Point
title_full_unstemmed The Maximum Domain for an Analytical Approximate Solution to a Nonlinear Differential Equation in the Neighborhood of a Moving Singular Point
title_short The Maximum Domain for an Analytical Approximate Solution to a Nonlinear Differential Equation in the Neighborhood of a Moving Singular Point
title_sort maximum domain for an analytical approximate solution to a nonlinear differential equation in the neighborhood of a moving singular point
topic nonlinearity aspect
perturbation of a moving singular point
scope of application
a priori estimation
url https://www.mdpi.com/2075-1680/12/9/844
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