We study seasonal epidemic spreading in a susceptible - infected - removed - susceptible ( SIRS ) model on smallworld graphs .
Our work offers new perspectives
We study seasonal epidemic spreading in a susceptible - infected - removed - susceptible ( SIRS ) model on smallworld graphs .
Our work offers new perspectives by demonstrating that small - worldness and non - Markovianity can stabilize a classical discrete time crystal , and by linking recent efforts to understand such dynamical phases of matter to the century - old problem of biennial epidemics .