***PLEASE NOTE THAT THE SEMINAR THIS WEEK IS NOW ONLINE ONLY*** SMRI Seminar ’Canards, Cardiac Cycles, and Chimeras’ Theodore Vo (Monash University) Tuesday 8th March, 3:00-4:00pm (AEDT) Online only Registration: https://uni-sydney.zoom.us/meeting/register/tZUkcu6rpzgrHda__Y0aWClJnXvbtmAKnjge Abstract: Canards are solutions of singularly perturbed ODEs that organise the dynamics in phase and parameter space. In this talk, we explore two aspects of canard theory: their applications in the life sciences and their ability to generate new phenomena. More specifically, we will use canard theory to analyse a canonical model of the electrical activity in a heart muscle cell. We demonstrate that pathological heart rhythms, called early afterdepolarisations, are canard-induced phenomena. We use this knowledge to explain the rich set of model behaviours, some of which have also been observed in experiments. Then, we explore a new class of canard-induced patterns in reaction-diffusion PDEs which exhibit coexisting domains of mutually synchronised oscillators and complementary domains of decoherent (asynchronous) oscillators. Note: This seminar will be recorded, including participant questions (participants only when asking questions), and uploaded to the SMRI YouTube Channel https://www.youtube.com/c/SydneyMathematicalResearchInstituteSMRI Other upcoming SMRI events can be found here: https://mathematical-research-institute.sydney.edu.au/news-events/