Linear stability of the incoherent solution and the transition formula for the Kuramoto-Daido model

Details Linear stability of the incoherent solution and the transition formula for the Kuramoto-Daido model Linear stability of the incoherent solution and the transition formula for the Kuramoto-Daido model

2009-11-26

arxiv.org/abs/0911.4993v1

Mathematics

Dynamical Systems

Scientific paper

The Kuramoto-Daido model, which describes synchronization phenomena, is a system of ordinary differential equations on $N$-torus defined as coupled harmonic oscillators, whose natural frequencies are drawn from some distribution function. In this paper, the continuous model for the Kuramoto-Daido model is introduced and the linear stability of its trivial solution (incoherent solution) is investigated. Kuramoto's transition point $K_c$, at which the incoherent solution changes the stability, is derived for an arbitrary distribution function for natural frequencies. It is proved that if the coupling strength $K$ is smaller than $K_c$, the incoherent solution is asymptotically stable, while if $K$ is larger than $K_c$, it is unstable.

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