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JOURNALS // Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki // Archive

Zh. Vychisl. Mat. Mat. Fiz., 2024 Volume 64, Number 10, Pages 2429–2441 (Mi zvmmf11883)

Papers published in the English version of the journal

The internal layer of boundary value problem for a class of system of singularly perturbed equations with discontinuous right-hand side

Ruixiang Li, Mingkang Ni

School of Mathematical Sciences, East China Normal University, 200062, Shanghai, PR China

Abstract: This article discusses a class of singularly perturbed system of equations with discontinuous right-hand side when the small parameters before the highest-order derivative are the same. Sufficient conditions for existence of a smooth solution with internal layer of the problem are introduced and its asymptotic expansion is constructed.

Key words: discontinuous right-hand side, quasilinear system of equations, asymptotic method, internal layer.

Received: 27.12.2023
Revised: 29.05.2024
Accepted: 04.12.2024

Language: English


 English version:
Computational Mathematics and Mathematical Physics, 2024, 64:10, 2429–2441


© Steklov Math. Inst. of RAS, 2026