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The Kosambi-Cartan-Chern (KCC) theory represents a powerful mathematical method for the analysis of dynamical systems. In this approach one describes the evolution of a dynamical system in geometric terms, by considering it as a geodesic in…

Mathematical Physics · Physics 2013-05-15 C. G. Boehmer , T. Harko , S. V. Sabau

The Kosambi-Cartan-Chern (KCC) theory represents a powerful mathematical method for the investigation of the properties of dynamical systems. The KCC theory introduces a geometric description of the time evolution of a dynamical system,…

Differential Geometry · Mathematics 2016-02-17 Tiberiu Harko , Praiboon Pantaragphong , Sorin V. Sabau

We perform the study of the stability of the Lorenz system by using the Jacobi stability analysis, or the Kosambi-Cartan-Chern (KCC) theory. The Lorenz model plays an important role for understanding hydrodynamic instabilities and the…

Mathematical Physics · Physics 2015-07-14 Tiberiu Harko , Chor Yin Ho , Chun Sing Leung , Stan Yip

The aim of this paper is to develop, via the least squares variational method, the Lagrange-Hamilton geometry (in the sense of nonlinear connections, d-torsions and Lagrangian Yang-Mills electromagnetic-like energy) produced by a…

Differential Geometry · Mathematics 2025-10-14 Ana-Maria Boldeanu , Mircea Neagu

A powerful mathematical method for the investigation of the properties of dynamical systems is represented by the Kosambi-Cartan-Chern (KCC) theory. In this approach the time evolution of a dynamical system is described in geometric terms,…

Differential Geometry · Mathematics 2015-09-02 Tiberiu Harko , Praiboon Pantaragphong , Sorin Sabau

The classical theory of Kosambi-Cartan-Chern (KCC) developed in differential geometry provides a powerful method for analyzing the behaviors of dynamical systems. In the KCC theory, the properties of a dynamical system are described in…

Symbolic Computation · Computer Science 2024-06-18 Bo Huang , Dongming Wang , Jing Yang

A variational principle is proposed for obtaining the Jacobi equations in systems admitting a Lagrangian description. The variational principle gives simultaneously the Lagrange equations of motion and the Jacobi variational equations for…

Mathematical Physics · Physics 2009-10-31 H. N. Núñez-Yépez , A. L. Salas-Brito

In this paper we develop, via the least squares variational method, the Lagrange-Hamilton geometry (in the sense of nonlinear connections, d-torsions and Lagrangian Yang-Mills electromagnetic-like energy) produced by a dynamical system…

Differential Geometry · Mathematics 2025-10-28 Ana-Maria Boldeanu , Mircea Neagu

We perform the study of the stability of the cosmological scalar field models, by using the Jacobi stability analysis, or the Kosambi-Cartan-Chern (KCC) theory. In the KCC approach we describe the time evolution of the scalar field…

General Relativity and Quantum Cosmology · Physics 2016-10-31 Bogdan Dănilă , Tiberiu Harko , Man Kwong Mak , Praiboon Pantaragphong , Sorin Sabau

The circular restricted three body problem, which considers the dynamics of an infinitesimal particle in the presence of the gravitational interaction with two massive bodies moving on circular orbits about their common center of mass, is a…

Instrumentation and Methods for Astrophysics · Physics 2021-04-07 Cristina Blaga , Paul A. Blaga , Tiberiu Harko

We apply the Kosambi-Cartan-Chern theory to perform an extensive examination of Jacobi stability of geodesics around rotating black hole solutions to dynamical Chern-Simons gravity, a theory that introduces modifications to General…

General Relativity and Quantum Cosmology · Physics 2026-04-09 Tonatiuh Tiscareño , Benito Rodríguez , Javier Chagoya

This paper introduces an algorithmic approach to the analysis of Jacobi stability of systems of second order ordinary differential equations (ODEs) via the Kosambi--Cartan--Chern (KCC) theory. We develop an efficient symbolic program using…

Symbolic Computation · Computer Science 2025-04-29 Christian G. Böhmer , Bo Huang , Dongming Wang , Xinyu Wang

We reconsider both the global and local stability of solutions of continuously evolving dynamical systems from a geometric perspective. We clarify that an unambiguous definition of stability generally requires the choice of additional…

Mathematical Physics · Physics 2009-08-12 Raffaele Punzi , Mattias N. R. Wohlfarth

We present a method devised by Jacobi to derive Lagrangians of any second-order differential equation: it consists in finding a Jacobi Last Multiplier. We illustrate the easiness and the power of Jacobi's method by applying it to the same…

Exactly Solvable and Integrable Systems · Physics 2008-07-18 M. C. Nucci , K. M. Tamizhmani

The generalization of the Maupertuis principle to second-order Variational Calculus is performed. The stability of the solutions of a natural dynamical system is thus analyzed via the extension of the Theorem of Jacobi. It is shown that the…

Mathematical Physics · Physics 2007-05-23 A. Alonso Izquierdo , M. A. Gonzalez Leon , J. Mateos Guilarte , M. de la Torre Mayado

We investigate the exact relation existing between the stability equation for the solutions of a mechanical system and the geodesic deviation equation of the associated geodesic problem in the Jacobi metric constructed via the…

Mathematical Physics · Physics 2007-05-31 M. A. Gonzalez Leon , J. L. Hernandez Pastora

It is known that minimal Lagrangians in K\"ahler--Einstein manifolds of non-positive scalar curvature are linearly stable under Hamiltonian deformations. We prove that they are also stable under the Lagrangian mean curvature flow, and…

Differential Geometry · Mathematics 2024-06-10 Ping-Hung Lee , Chung-Jun Tsai

We present a new method based on Lie symmetries and Jacobi last multipliers which allows one to find many non-standard Lagrangians for dissipative dynamical systems. In particular, it is demonstrated that for every non-standard Lagrangian…

Classical Physics · Physics 2022-02-22 Gabriel Gonzalez

We propose a system of equations that defines Weierstrass--Jacobi's eta- and theta-constant series in a differentially closed way. This system is shown to have a direct relationship to a little-known dynamical system obtained by Jacobi. The…

Classical Analysis and ODEs · Mathematics 2015-05-20 Yu. Brezhnev , S. Lyakhovich , A. Sharapov

An explicit expression for the Jacobi metric for a general Lagrangian system is obtained as a series expansion in the square root of the kinetic energy of the system and the corresponding geodesics are described in terms of an appropriate…

Classical Physics · Physics 2019-12-19 Paolo Maraner
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