(Iq)–Stability and Uniform Convergence of the Solutions of Singularly Perturbed Boundary Value Problems

Author:

Vrabel Robert1ORCID

Affiliation:

1. Institute of Applied Informatics, Automation and Mechatronics, Slovak University of Technology in Bratislava, Bottova 25, 917 01 Trnava, Slovakia

Abstract

In this paper, using the notion of (Iq)–stability and the method of a priori estimates, known as the method of lower and upper solutions, the sufficient conditions guaranteeing uniform convergence of solutions to the solution of a reduced problem on the entire interval [a,b] have been established for four different types of boundary conditions for a singularly perturbed differential equation εy″=f(x,y,y′), a≤x≤b. In the second part of the paper, by employing the Peano phenomenon, we analyzed the structure of the solutions of the reduced problem f(x,y,y′)=0.

Funder

Ministry of Education, Science, Research and Sport of the Slovak Republic

Publisher

MDPI AG

Subject

General Mathematics,Engineering (miscellaneous),Computer Science (miscellaneous)

Reference24 articles.

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2. Vasiliev, N.I., and Klokov, J.A. (1978). Foundations of the Theory of Boundary Value Problems for Ordinary Differential Equations, Zinatne. (In Russian).

3. Stability in semilinear problems;Idczak;J. Differ. Equ.,2000

4. Geometric Singular Perturbation Theory;Jones;Dynamical Systems, Part of the Lecture Notes in Mathematics,2006

5. Geometric singular perturbation theory for ordinary differential equations;Fenichel;J. Differ. Equ.,1979

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