Synchronization in Networks of Coupled Harmonic Oscillators with Stochastic Perturbation and Time Delays

In this paper, we investigate synchronization of coupled second-order linear harmonic oscillators with random noises and time delays. The interaction topology is modeled by a weighted directed graph and the weights are perturbed by white noise. On the basis of stability theory of stochastic differential delay equations, algebraic graph theory and matrix theory, we show that the coupled harmonic oscillators can be synchronized almost surely with perturbation and time delays. Numerical examples are presented to illustrate our theoretical results.

💡 Research Summary

This paper addresses the almost‑sure synchronization problem for a network of second‑order linear harmonic oscillators whose coupling strengths are subject to white‑noise perturbations and whose interactions experience a constant communication delay. The interaction topology is represented by a weighted directed graph, allowing asymmetric and time‑varying connections. Each oscillator obeys the dynamics
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