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JOURNALS // Sibirskie Èlektronnye Matematicheskie Izvestiya [Siberian Electronic Mathematical Reports] // Archive

Sib. Èlektron. Mat. Izv., 2020 Volume 17, Pages 51–60 (Mi semr1199)

This article is cited in 4 papers

Differentical equations, dynamical systems and optimal control

A solution of the singularly perturbed Cauchy problem in the presence of a «weak» turning point at the limit operator

A. G. Eliseev, P. V. Kirichenko

National Research University «MPEI», 17, Krasnokazarmennaya str., Moscow, 111116, Russia

Abstract: The paper proposes a method for constructing an asymptotic solution of the singularly perturbed Cauchy problem in the case of violation of the stability conditions of the spectrum of the limit operator. In particular, we consider the problem with a turning point where eigenvalues "stick together" at $t=0$.

Keywords: singularly perturbed Cauchy problem, turning point, regularization method.

UDC: 517.928.2

MSC: 34E20

Received February 26, 2019, published February 4, 2020

DOI: 10.33048/semi.2020.17.005



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