Dicke model IP3Rs dsitribution Lyapunov exponent Markov processes Slater’s theorem annular billiard birthday problem calcium signals complex systems computational methods convection coupled oscillators cyclic dynamics delay bifurcation diffusive instabilities ecological methods epidemic models local field potential mean field models neural network nonlinear dynamics out of equilibrium system point scatterer population biology population dynamics predator–prey system puffs reaction fronts recurrence time sampling rates