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Genetic systems with multiple loci can have complex dynamics. For example, mean fitness need not always increase and stable cycling is possible. Here, we study the dynamics of a genetic system inspired by the molecular biology of…

Populations and Evolution · Quantitative Biology 2019-05-10 Timothy W. Russell , Matthew J. Russell , Francisco Úbeda , Vincent A. A. Jansen

We study pseudo-simple heteroclinic cycles for a $\Gamma$-equivariant system in $R^4$ with finite $\Gamma\subset O(4)$, and their nearby dynamics. In particular, in a first step towards a full classification - analogous to that which exists…

Chaotic Dynamics · Physics 2018-05-09 Pascal Chossat , Alexander Lohse , Olga Podvigina

The well-known game of Rock--Paper--Scissors can be used as a simple model of competition between three species. When modelled in continuous time using differential equations, the resulting system contains a heteroclinic cycle between the…

Dynamical Systems · Mathematics 2023-01-18 Claire M Postlethwaite , Alastair M Rucklidge

In this paper, we study heterodimensional cycles of two-parameter families of 3-dimensional diffeomorphisms some element of which contains nondegenerate heterodimensional tangencies of the stable and unstable manifolds of two saddle points…

Dynamical Systems · Mathematics 2010-07-12 Shin Kiriki , Yusuke Nishizawa , Teruhiko Soma

We consider a one-parameter family $(f_\lambda)_{\lambda \, \geqslant \, 0}$ of symmetric vector fields on the three-dimensional sphere $\mathbb{S}^3\subset\mathbb{R}^4$ whose flows exhibit a heteroclinic network between two saddle-foci…

Dynamical Systems · Mathematics 2019-11-25 Mario Bessa , Maria Carvalho , Alexandre A. P. Rodrigues

We study the dynamics near heteroclinic networks for which all eigenvalues of the linearization at the equilibria are real. A common connection and an assumption on the geometry of its incoming and outgoing directions exclude even the…

Dynamical Systems · Mathematics 2016-10-21 Sofia Castro , Alexander Lohse

We consider two stable heteroclinic cycles rotating in opposite directions, coupled via diffusive terms. A complete synchronization in this system is impossible, and numerical exploration shows that chaos is abundant at low levels of…

Chaotic Dynamics · Physics 2023-06-14 Arkady Pikovsky , Alexander Nepomnyashchy

We consider heteroclinic networks between $n \in \mathbb{N}$ nodes where the only connections are those linking each node to its two subsequent neighbouring ones. Using a construction method where all nodes are placed in a single…

Dynamical Systems · Mathematics 2023-09-07 Sofia B. S. D. Castro , Alexander Lohse

We prove that heterodimensional cycles can be created by unfolding a pair of homoclinic tangencies in a certain class of C-infinity diffeomorphisms. This implies the existence of a C2- open domain in the space of dynamical systems with a…

Dynamical Systems · Mathematics 2019-03-15 Dongchen Li , Dmitry Turaev

We consider diffeomorphisms $f$ with heterodimensional cycles of co-index two, associated with saddles $P$ and $Q$ having unstable indices $\ell$ and $\ell+2$, respectively. In a partially hyperbolic setting, where a two-dimensional center…

Dynamical Systems · Mathematics 2025-11-18 Pablo G. Barrientos , Lorenzo J. Díaz , Yuri Ki , Cristina Lizana , Sebastián A. Pérez

A square lattice distribution of coupled oscillators that have heteroclinic cycle attractors is studied. In this system, we find a novel type of patterns that is spatially disordered and periodic in time. These patterns are limit cycle…

Chaotic Dynamics · Physics 2009-11-07 Masashi Tachikawa

Dynamical systems that are invariant under the action of a non-trivial symmetry group can possess structurally stable heteroclinic cycles. In this paper we study stability properties of a class of structurally stable heteroclinic cycles in…

Chaotic Dynamics · Physics 2015-05-30 Olga Podvigina

Heteroclinic connections between two distinct hyperbolic periodic orbits in conservative systems are important in a wide range of applications. On the other hand, it is theoretically challenging to find large amplitude connections from…

Dynamical Systems · Mathematics 2026-02-06 Thomas J. Bridges , David J. B. Lloyd , Daniel J. Ratliff , Patrick Sprenger

Heteroclinic connections are trajectories that link invariant sets for an autonomous dynamical flow: these connections can robustly form networks between equilibria, for systems with flow-invariant spaces. In this paper we examine the…

Dynamical Systems · Mathematics 2019-09-04 Peter Ashwin , Sofia Castro , Alexander Lohse

In this paper we introduce the notion of a $d$-dimensional cycle which is a homological generalization of the idea of a graph cycle to higher dimensions. We examine both the combinatorial and homological properties of this structure and use…

Algebraic Topology · Mathematics 2013-07-23 Emma Connon

In this paper we analyze the heteroclinic cycle and the Hopf bifurcation of a generic dynamical system with the symmetry of the group $\mathbf{Q}_8,$ constructed via a Cayley graph. While the Hopf bifurcation is similar to that of a…

Dynamical Systems · Mathematics 2017-07-28 Adrian C. Murza

An analytic reversible Hamiltonian system with two degrees of freedom is studied in a neighborhood of its symmetric heteroclinic connection made up of a symmetric saddle-center, a symmetric orientable saddle periodic orbit lying in the same…

Dynamical Systems · Mathematics 2021-02-24 L. M. Lerman , K. N. Trifonov

We establish an equivalence between infinitely many asymptotically stable periodic solutions and subsumed homoclinic connections for $N$-dimensional piecewise-linear continuous maps. These features arise as a codimension-three phenomenon.…

Dynamical Systems · Mathematics 2017-04-05 David J. W. Simpson , Christopher P. Tuffley

Stable and unstable manifolds, originating from hyperbolic cycles, fundamentally characterize the behaviour of dynamical systems in chaotic regions. This letter demonstrates that their shifts under perturbation, crucial for chaos control,…

Plasma Physics · Physics 2024-07-10 Wenyin Wei , Jiankun Hua , Alexander Knieps , Yunfeng Liang

In the first part of this paper, we showed that three coupled populations of identical phase oscillators give rise to heteroclinic cycles between invariant sets where populations show distinct frequencies. Here, we now give explicit…

Dynamical Systems · Mathematics 2019-08-05 Christian Bick , Alexander Lohse