Excitability is a property of certain nonlinear dynamical systems concerning their response to external perturbations. Excitable systems can be classified into two classes, Type-I and II, with different dynamical properties and caused by different bifurcations. Excitable media, locally excitable spatial extended systems, show different regimes in which local perturbation exceeding a threshold can propagate across the medium. There are many studies considering Type-II excitable media, but much less is known about pulse propagation in the Type-I case. Recently, several vegetation systems compatible with Type-I excitability have shown traveling pulses, renewing interest in their study. In this seminar we will show the differences between both typ
es of excitable media and characterize the properties of Type-I excitable pulses.
Presential in seminar room, with parallel Zoom stream at https://zoom.us/j/98286706234?pwd=bm1JUFVYcTJkaVl1VU55L0FiWDRIUT09
