BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Jacob Richey (University of Washington) DTSTART:20200428T223000Z DTEND:20200428T233000Z DTSTAMP:20260404T111214Z UID:JacobRichey/1 DESCRIPTION:Title: Recent results on the phase transition for activated random wal k\nby Jacob Richey (University of Washington) as part of Recent result s on the phase transition for activated random walk\n\n\nAbstract\nIn this talk I will discuss activated random walk\, an interacting particle syste m that exhibits a phase transition on infinite domains and self-organized criticality on finite domains. In the infinite version\, the system is ini tialized with density μ of particles which perform independent simple ran dom walk\, fall asleep at rate λ\, and are woken up if another particle m oves to the same site. There are two possible limiting behaviors: local fi xation\, where each site is visited finitely many times a.s.\, or non-fixa tion\, where each site is visited infinitely many times a.s. Current resea rch is focused on determining where the transition between these two pheno mena occurs in terms of μ and λ\, and many questions still remain – ev en on Z. I will present some recent results and discuss the novel tools in volved.\n\nOrganizers: CUNY\n\nhttp://www.math.columbia.edu/department/pro bability/seminar/prob_sem_global.html​\n LOCATION:https://stable.researchseminars.org/talk/JacobRichey/1/ END:VEVENT END:VCALENDAR