A Lyapunov function for a Synchronisation diffeomorphism of three clocks

Fuente: arXiv
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Main Authors: Buescu, Jorge, D'Aniello, Emma, Oliveira, Henrique M.
Format: Preprint
Published: 2025
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author Buescu, Jorge
D'Aniello, Emma
Oliveira, Henrique M.
author_facet Buescu, Jorge
D'Aniello, Emma
Oliveira, Henrique M.
contents Lyapunov functions are essential tools in dynamical systems, as they allow the stability analysis of equilibrium points without the need to explicitly solve the system's equations. Despite their importance, no systematic method exists for constructing Lyapunov functions. In a previous paper, we examined a diffeomorphism arising from the problem of Huygens Synchronisation for three identical limit cycle clocks arranged in a line, proving that the system possesses a unique asymptotically stable fixed point on the torus T2, corresponding to synchronisation in phase opposition. In this paper, we re-derive this result by constructing a discrete Lyapunov function for the system. The closure of the basin of attraction of the asymptotically stable attractor is the torus T2, showing that Huygens Synchronisation exhibits generic and robust behaviour, occurring with probability one with respect to initial conditions.
format Preprint
id arxiv_https___arxiv_org_abs_2502_15371
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A Lyapunov function for a Synchronisation diffeomorphism of three clocks
Buescu, Jorge
D'Aniello, Emma
Oliveira, Henrique M.
Dynamical Systems
Lyapunov functions are essential tools in dynamical systems, as they allow the stability analysis of equilibrium points without the need to explicitly solve the system's equations. Despite their importance, no systematic method exists for constructing Lyapunov functions. In a previous paper, we examined a diffeomorphism arising from the problem of Huygens Synchronisation for three identical limit cycle clocks arranged in a line, proving that the system possesses a unique asymptotically stable fixed point on the torus T2, corresponding to synchronisation in phase opposition. In this paper, we re-derive this result by constructing a discrete Lyapunov function for the system. The closure of the basin of attraction of the asymptotically stable attractor is the torus T2, showing that Huygens Synchronisation exhibits generic and robust behaviour, occurring with probability one with respect to initial conditions.
title A Lyapunov function for a Synchronisation diffeomorphism of three clocks
topic Dynamical Systems
url https://arxiv.org/abs/2502.15371