Year: 2019
Type: Article
Title: Synchronization transitions caused by time-varying coupling functions
Author: Hagos, Zeray
Author: Stankovski Tomislav
Author: Newman, Julian
Author: Pereira, Tiago
Author: McClintock, Peter V E
Author: Stefanovska, Aneta
Abstract: Interacting dynamical systems are widespread in nature. The influence that one such system exerts on another is described by a coupling function; and the coupling functions extracted from the time-series of interacting dynamical systems are often found to be time-varying. Although much effort has been devoted to the analysis of coupling functions, the influence of time-variability on the associated dynamics remains largely unexplored. Motivated especially by coupling functions in biology, including the cardiorespiratory and neural delta-alpha coupling functions, this paper offers a contribution to the understanding of effects due to time-varying interactions. Through both numerics and mathematically rigorous theoretical consideration, we show that for time-variable coupling functions with time-independent net coupling strength, transitions into and out of phase- synchronization can occur, even though the frozen coupling functions determine phase-synchronization solely by virtue of their net coupling strength. Thus the information about interactions provided by the shape of coupling functions plays a greater role in determining behaviour when these coupling functions are time-variable. This article is part of the theme issue 'Coupling functions: dynamical interaction mechanisms in the physical, biological and social sciences'.
Publisher: The Royal Society
Relation: Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
Identifier: oai:repository.ukim.mk:20.500.12188/7166
Identifier: http://hdl.handle.net/20.500.12188/7166Identifier: 10.1098/rsta.2019.0275
Identifier: https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2019.0275Identifier: https://royalsocietypublishing.org/doi/full-xml/10.1098/rsta.2019.0275Identifier: https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2019.0275Identifier: 377
Identifier: 2160
