Jacobi Stability for T-System

In this paper will be considered a three-dimensional autonomous quadratic polynomial system of first-order differential equations with three real parameters, the so-called T-system. This system is symmetric relative to the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML...

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Main Author: Florian Munteanu
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/16/1/84
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author Florian Munteanu
author_facet Florian Munteanu
author_sort Florian Munteanu
collection DOAJ
description In this paper will be considered a three-dimensional autonomous quadratic polynomial system of first-order differential equations with three real parameters, the so-called T-system. This system is symmetric relative to the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>O</mi><mi>z</mi></mrow></semantics></math></inline-formula>-axis and represents a special type of the generalized Lorenz system. The approach of this work will consist of the study of the nonlinear dynamics of this system through the Kosambi–Cartan–Chern (KCC) geometric theory. More exactly, we will focus on the associated system of second-order differential equations (SODE) from the point of view of Jacobi stability by determining the five invariants of the KCC theory. These invariants determine the internal geometrical characteristics of the system, and particularly, the deviation curvature tensor is decisive for Jacobi stability. Furthermore, we will look for necessary and sufficient conditions that the system parameters must satisfy in order to have Jacobi stability for every equilibrium point.
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spelling doaj.art-09d351c399674afcb4c99acb819094702024-01-26T18:38:51ZengMDPI AGSymmetry2073-89942024-01-011618410.3390/sym16010084Jacobi Stability for T-SystemFlorian Munteanu0Department of Applied Mathematics, Faculty of Sciences, University of Craiova, Al. I. Cuza, 13, 200585 Craiova, RomaniaIn this paper will be considered a three-dimensional autonomous quadratic polynomial system of first-order differential equations with three real parameters, the so-called T-system. This system is symmetric relative to the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>O</mi><mi>z</mi></mrow></semantics></math></inline-formula>-axis and represents a special type of the generalized Lorenz system. The approach of this work will consist of the study of the nonlinear dynamics of this system through the Kosambi–Cartan–Chern (KCC) geometric theory. More exactly, we will focus on the associated system of second-order differential equations (SODE) from the point of view of Jacobi stability by determining the five invariants of the KCC theory. These invariants determine the internal geometrical characteristics of the system, and particularly, the deviation curvature tensor is decisive for Jacobi stability. Furthermore, we will look for necessary and sufficient conditions that the system parameters must satisfy in order to have Jacobi stability for every equilibrium point.https://www.mdpi.com/2073-8994/16/1/84T-systemthe deviation curvature tensorJacobi stabilityKCC geometric theory
spellingShingle Florian Munteanu
Jacobi Stability for T-System
Symmetry
T-system
the deviation curvature tensor
Jacobi stability
KCC geometric theory
title Jacobi Stability for T-System
title_full Jacobi Stability for T-System
title_fullStr Jacobi Stability for T-System
title_full_unstemmed Jacobi Stability for T-System
title_short Jacobi Stability for T-System
title_sort jacobi stability for t system
topic T-system
the deviation curvature tensor
Jacobi stability
KCC geometric theory
url https://www.mdpi.com/2073-8994/16/1/84
work_keys_str_mv AT florianmunteanu jacobistabilityfortsystem