The Study of Slow Manifolds in the Lorenz-Haken Model Using Differential Geometry

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A. K. M. Nazimuddin 1,* Md. Showkat Ali 2

1. Department of Mathematical and Physical Sciences, East West University, Dhaka-1212, Bangladesh

2. Department of Applied Mathematics, University of Dhaka, Dhaka-1000, Bangladesh

* Corresponding author.


Received: 15 Apr. 2023 / Revised: 1 May 2023 / Accepted: 23 May 2023 / Published: 8 Dec. 2023

Index Terms

L-H equations, Slow-Fast Model, Analytical Equation, Darboux Theory, Flow Curvature Method


In order to explore the Lorenz-Haken model, we will concentrate on the flow curvature technique, a recently created method based on differential geometry. This approach treats a dynamical system's trajectory curve or flow as a curve in Euclidean space. Analytical calculations may be used to determine the flow curvature, which is the trajectory curve's curvature. The flow curvature manifold, which is related to the dynamical system of any dimension, is defined by the locations where the flow curvature is null. For the slow invariant manifold of the same dynamical system, the flow curvature manifold offers an analytical equation. The slow invariant manifold equation may be discovered using the flow curvature technique without the need of any asymptotic expansions. In this study, we compute the analytical equation of the slow invariant manifold for the three-dimensional Lorenz-Haken model using the flow curvature approach for the first time. This analytical equation, together with its visual representation in phase space, makes it possible to distinguish between the slow development of trajectory curves and the rapid one, which advances our knowledge of this slow-fast domain. This study also advances the field relative to earlier similar work. Aside from that, we utilize the Darboux theorem to demonstrate the slow manifold's invariance characteristic.

Cite This Paper

A. K. M. Nazimuddin, Md. Showkat Ali, "The Study of Slow Manifolds in the Lorenz-Haken Model Using Differential Geometry", International Journal of Mathematical Sciences and Computing(IJMSC), Vol.9, No.4, pp. 1-9, 2023. DOI:10.5815/ijmsc.2023.04.01


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