Phase-locked patterns of the Kuramoto model on 3-regular graphs.

We consider the existence of non-synchronized fixed points to the Kuramoto model defined on sparse networks: specifically, networks where each vertex has degree exactly three. We show that "most" such networks support multiple attracting phase-locked solutions that are not synchronized and study the depth and width of the basins of attraction of these phase-locked solutions. We also show that it is common in "large enough" graphs to find phase-locked solutions where one or more of the links have angle difference greater than π/2.

[1]  Bryan C. Daniels,et al.  Synchronization of coupled rotators: Josephson junction ladders and the locally coupled Kuramoto model. , 2003, Physical review. E, Statistical, nonlinear, and soft matter physics.

[2]  Henk Nijmeijer,et al.  Synchronization and Graph Topology , 2005, Int. J. Bifurc. Chaos.

[3]  Duncan J. Watts,et al.  Collective dynamics of ‘small-world’ networks , 1998, Nature.

[4]  S. Strogatz,et al.  The size of the sync basin. , 2006, Chaos.

[5]  Lee Xavier DeVille,et al.  Transitions amongst synchronous solutions in the stochastic Kuramoto model , 2012 .

[6]  Olaf Sporns,et al.  Network structure of cerebral cortex shapes functional connectivity on multiple time scales , 2007, Proceedings of the National Academy of Sciences.

[7]  Olaf Sporns,et al.  Mechanisms of Zero-Lag Synchronization in Cortical Motifs , 2013, PLoS Comput. Biol..

[8]  M C Cross,et al.  Frequency precision of two-dimensional lattices of coupled oscillators with spiral patterns. , 2013, Physical review. E, Statistical, nonlinear, and soft matter physics.

[9]  M. Golubitsky,et al.  Nonlinear dynamics of networks: the groupoid formalism , 2006 .

[10]  G. Ermentrout Stable periodic solutions to discrete and continuum arrays of weakly coupled nonlinear oscillators , 1992 .

[11]  Bard Ermentrout,et al.  Waves and Patterns on Regular Graphs , 2015, SIAM J. Appl. Dyn. Syst..

[12]  G. Ermentrout,et al.  Frequency Plateaus in a Chain of Weakly Coupled Oscillators, I. , 1984 .

[13]  Jared C. Bronski,et al.  Spectral Theory for Dynamics on Graphs Containing Attractive and Repulsive Interactions , 2014, SIAM J. Appl. Math..

[14]  Lee DeVille,et al.  Fully synchronous solutions and the synchronization phase transition for the finite-N Kuramoto model. , 2011, Chaos.

[15]  P. Holmes,et al.  The nature of the coupling between segmental oscillators of the lamprey spinal generator for locomotion: A mathematical model , 1982, Journal of mathematical biology.

[16]  Bard Ermentrout,et al.  Stable Rotating Waves in Two-Dimensional Discrete Active Media , 1994, SIAM J. Appl. Math..

[17]  S. Strogatz From Kuramoto to Crawford: exploring the onset of synchronization in populations of coupled oscillators , 2000 .

[18]  S. Strogatz,et al.  Synchronization of pulse-coupled biological oscillators , 1990 .

[19]  Florian Dörfler,et al.  Algebraic geometrization of the Kuramoto model: Equilibria and stability analysis. , 2014, Chaos.

[20]  D. Kleinfeld,et al.  Traveling Electrical Waves in Cortex Insights from Phase Dynamics and Speculation on a Computational Role , 2001, Neuron.

[21]  JARED C. BRONSKI,et al.  Graph Homology and Stability of Coupled Oscillator Networks , 2015, SIAM J. Appl. Math..