Segnalo il seguente seminario, che si terrà Martedì prossimo in Sapienza. *Martedì 4 Aprile, ore 14:00* Sala di Consiglio, Dipartimento di Matematica, Sapienza Università di Roma *Speaker:* Lionel Levine, Cornell University *Title: *Universality Conjectures For Activated Random Walk *Abstract:* Activated Random Walk is a particle system displaying avalanches on all scales. How universal are these avalanches? I’ll narrate five interlocking conjectures aimed at different aspects of this question: infinite-volume limits, cutoff, incompressibility, rotational symmetry, and hyperuniformity. Joint work with Feng Liang and with Vittoria Silvestri. ******************************** Vittoria Silvestri Assistant Professor Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome ********************************