We analyze how the structure of complex networks of non-identical oscillators influences synchronization in the context of the Kuramoto model. The complex network metrics assortativity and clustering coefficient are used in order to generate network topologies of Erdös–Rényi, Watts–Strogatz, and Barabási–Albert types that present high, intermediate, and low values of these metrics. We also employ the total dissonance metric for neighborhood similarity, which generalizes to networks the standard concept of dissonance between two non-identical coupled oscillators. Based on this quantifier and using an optimization algorithm, we generate Similar, Dissimilar, and Neutral natural frequency patterns, which correspond to small, large, and intermediate values of total dissonance, respectively. The emergency of synchronization is numerically studied by considering these three types of dissonance patterns along with the network topologies generated by high, intermediate, and low values of the metrics assortativity and clustering coefficient. We find that, in general, low values of these metrics appear to favor phase locking, especially for the Similar dissonance pattern.
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November 2021
Research Article|
November 17 2021
How heterogeneity in connections and cycles matter for synchronization of complex networks
Special Collection:
Dynamics of Oscillator Populations
Juliana C. Lacerda
;
Juliana C. Lacerda
a)
1
National Institute for Space Research
, São José dos Campos 12227-010, Brazil
a)Author to whom correspondence should be addressed: juliana.lacerda@inpe.br
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Celso Freitas
;
Celso Freitas
b)
1
National Institute for Space Research
, São José dos Campos 12227-010, Brazil
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Elbert E. N. Macau
;
Elbert E. N. Macau
c)
2
Institute of Science and Technology, Federal University of São Paulo
, São José dos Campos 12247-010, Brazil
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Jürgen Kurths
Jürgen Kurths
d)
3
Department of Physics, Humboldt University of Berlin
, Newtonstr. 15, 12489 Berlin, Germany
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a)Author to whom correspondence should be addressed: juliana.lacerda@inpe.br
b)
Electronic mail: cbnfreitas@gmail.com
c)
Electronic mail: elbert.macau@unifesp.br
d)
Also at: Potsdam Institute for Climate Impact Research (PIK), Member of the Leibniz Association, P.O. Box 60 12 03, D-14412 Potsdam, Germany. Electronic mail: juergen.kurths@pik-potsdam.de
Note: This article is part of the Focus Issue, Dynamics of Oscillator Populations.
Chaos 31, 113134 (2021)
Article history
Received:
August 23 2021
Accepted:
November 03 2021
Citation
Juliana C. Lacerda, Celso Freitas, Elbert E. N. Macau, Jürgen Kurths; How heterogeneity in connections and cycles matter for synchronization of complex networks. Chaos 1 November 2021; 31 (11): 113134. https://doi.org/10.1063/5.0068136
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