What networks of oscillators spontaneously synchronize?


Event details

Date 11.10.2022
Hour 16:1517:15
Speaker Alex Townsend (Cornell)
Category Conferences - Seminars
Event Language English

Consider a network of identical phase oscillators with sinusoidal coupling. How likely are the oscillators to spontaneously synchronize, starting from random initial phases? One expects that dense networks of oscillators have a strong tendency to pulse in unison. But, how dense is dense enough? In this talk, we use techniques from numerical linear algebra, computational algebraic geometry, and Fourier analysis to derive the densest known networks that do not synchronize and the sparsest ones that do. We will find that there is a critical network density above which spontaneous synchrony is guaranteed regardless of the network's topology, and prove that synchrony is omnipresent for random Erdos-Renyi networks just above the connectivity threshold.


Practical information

  • General public
  • Free


  • Daniel Kressner


  • Daniel Kressner, Nicolas Boumal

Event broadcasted in