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We describe an example of a structurally stable heteroclinic network for which nearby orbits exhibit irregular but sustained switching between the various sub-cycles in the network. The mechanism for switching is the presence of spiralling…

Chaotic Dynamics · Physics 2019-10-03 Vivien Kirk , Emily Lane , Claire M. Postlethwaite , Alastair M. Rucklidge , Mary Silber

We study behaviour of trajectories near a type Z heteroclinic network which is a union of two cycles. Analytical and numerical studies indicate that attractiveness of this network can be associated with various kinds of dynamics in its…

Chaotic Dynamics · Physics 2021-11-23 Olga Podvigina

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

Networks of interacting nodes connected by edges arise in almost every branch of scientific enquiry. The connectivity structure of the network can force the existence of invariant subspaces, which would not arise in generic dynamical…

Dynamical Systems · Mathematics 2022-02-23 Claire M. Postlethwaite , Rob Sturman

This paper analyses the stability of cycles within a heteroclinic network lying in a three-dimensional manifold formed by six cycles, for a one-parameter model developed in the context of game theory. We show the asymptotic stability of the…

Dynamical Systems · Mathematics 2022-04-05 Telmo Peixe , Alexandre A. Rodrigues

The concept of stability has a long history in the field of dynamical systems: stable invariant objects are the ones that would be expected to be observed in experiments and numerical simulations. Heteroclinic networks are invariant objects…

Dynamical Systems · Mathematics 2025-03-06 Sofia B. S. D. Castro , Claire M. Postlethwaite , Alastair M. Rucklidge

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

Many real-world systems can be modeled as networks of interacting oscillatory units. Collective dynamics that are of functional relevance for the oscillator network, such as switching between metastable states, arise through the interplay…

Dynamical Systems · Mathematics 2019-08-05 Christian Bick

We study heteroclinic networks in $\mathbb{R}^4$, made of a certain type of simple robust heteroclinic cycle. In simple cycles all the connections are of saddle-sink type in two-dimensional fixed-point spaces. We show that there exist only…

Dynamical Systems · Mathematics 2016-10-21 Alexander Lohse , Sofia B. S. D. Castro

Heteroclinic structures organize global features of dynamical systems. We analyze whether heteroclinic structures can arise in network dynamics with higher-order interactions which describe the nonlinear interactions between three or more…

Dynamical Systems · Mathematics 2024-02-27 Christian Bick , Sören von der Gracht

We describe all heteroclinic networks in $\mathbb{R}^4$ made of simple heteroclinic cycles of types $B$ or $C$, with at least one common connecting trajectory. For networks made of cycles of type $B$, we study the stability of the cycles…

Dynamical Systems · Mathematics 2016-10-21 Sofia B. S. D. Castro , Alexander Lohse

Heteroclinic cycles are sequences of equilibria along with trajectories that connect them in a cyclic manner. We investigate a class of robust heteroclinic cycles that does not satisfy the usual condition that all connections between…

Dynamical Systems · Mathematics 2025-06-16 Sofia B. S. D. Castro , Alastair M. Rucklidge

This article is concerned with three heteroclinic cycles forming a heteroclinic network in ${\mathbb R}^6$. The stability of the cycles and of the network are studied. The cycles are of a type that has not been studied before, and provide…

Dynamical Systems · Mathematics 2018-05-21 Olga Podvigina , Sofia B. S. D. Castro , Isabel S. Labouriau

We address the question how a given connection structure (directed graph) can be realised as a heteroclinic network that is complete in the sense that it contains all unstable manifolds of its equilibria. For a directed graph consisting of…

Dynamical Systems · Mathematics 2026-01-26 Sofia B. S. D. Castro , Alexander Lohse

Functional oscillator networks, such as neuronal networks in the brain, exhibit switching between metastable states involving many oscillators. We give exact results how such global dynamics can arise in paradigmatic phase oscillator…

Adaptation and Self-Organizing Systems · Physics 2018-05-09 Christian Bick

We describe a simple adaptive network of coupled chaotic maps. The network reaches a stationary state (frozen topology) for all values of the coupling parameter, although the dynamics of the maps at the nodes of the network can be…

Adaptation and Self-Organizing Systems · Physics 2015-06-19 V. Botella-Soler , P. Glendinning

The stability of heteroclinic cycles may be obtained from the value of the local stability index along each connection of the cycle. We establish a way of calculating the local stability index for quasi-simple cycles: cycles whose…

Dynamical Systems · Mathematics 2018-02-15 Liliana Garrido-da-Silva , Sofia B. S. D. Castro

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

This article concerns arbitrary finite heteroclinic networks in any phase space dimension whose vertices can be a random mixture of equilibria and periodic orbits. In addition, tangencies in the intersection of un/stable manifolds are…

Dynamical Systems · Mathematics 2010-04-28 Jens D. M. Rademacher

Heteroclinic cycles and networks are structures in dynamical systems composed of invariant sets and connecting heteroclinic orbits, and can be robust in systems with invariant subspaces. The usual method for analysing the stability of…

Dynamical Systems · Mathematics 2026-04-02 David C. Groothuizen Dijkema , Vivien Kirk , Claire M. Postlethwaite
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