Dear all, This week, Friday May 22, Carlo Laing (Massey University) will give a talk at 2pm via Zoom. Note the unusual time. Zoom link: https://uni-sydney.zoom.us/j/93730512710 Meeting ID: 937 3051 2710 Title: Dynamics and stability of chimera states in two coupled populations of oscillators Abstract: We consider networks formed from two populations of identical oscillators, with uniform strength all-to-all coupling within populations, and also between populations, with a different strength. Such systems are known to support chimera states in which oscillators within one population are perfectly synchronised while in the other the oscillators are incoherent, and have a different mean frequency from those in the synchronous population. Assuming that the oscillators in the incoherent population always lie on a closed smooth curve C, we derive and analyse the dynamics of the shape of C and the probability density on C, for several different types of oscillators. I hope to see you all online. Lachlan