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

Zh. Vychisl. Mat. Mat. Fiz., 2025 Volume 65, Number 4, Pages 711–726 (Mi zvmmf11964)

Papers published in the English version of the journal

An efficient computational algorithm for a class of two parameter nonlinear singular perturbation problems with Cauchy data

M. Mariappan

Department of Mathematics, School of Engineering, Presidency University, 560064, Bengaluru, Karnataka, India

Abstract: Nonlinear science plays a vital role in modern technology. Due to the limitations over the linear theories, the analysis of nonlinear problems has become very essential to investigate the dynamics of complicated and multi parameter problems. This article aims at the analysis and implementation of a numerical method for a class of two parameter singularly perturbed nonlinear differential equations with Cauchy data. A non-classical, robust and layer-resolving numerical method involving the continuation algorithm is developed to obtain the numerical approximations to the class of problems. The newly developed numerical method is proved to be essentially first order convergent uniformly with respect to the parameters. Numerical experiments included support the theoretical results.

Key words: two parameter nonlinear singular perturbation problems, Cauchy data, boundary layer, Shishkin mesh, parameter independent convergence.

Received: 02.03.2024
Revised: 02.03.2024
Accepted: 05.02.2025

Language: English


 English version:
Computational Mathematics and Mathematical Physics, 2025, 65:4, 711–726


© Steklov Math. Inst. of RAS, 2026