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UID:20250720T055837EDT-1265CwmNo5@132.216.98.100
DTSTAMP:20250720T095837Z
DESCRIPTION:Title: The extinction probability of rough super-Brownian motio
 n.\n\nAbstract: The rough super-Brownian motion (rSBM) is a super-Brownian
  motion with a white noise potential\, and has been shown to arise as the 
 scaling limit of branching random walks in random environments. In dimensi
 ons d≥2\, its construction requires renormalization\, in the sense of sing
 ular SPDEs. This talk concerns ongoing work on the short-time asymptotics 
 of the extinction probability of the rSBM. This probability is characteriz
 ed in terms of the maximal solution to a nonlinear singular SPDE\, and I w
 ill discuss a construction of this solution via a perturbative expansion a
 round the corresponding “no noise” solution. Time-permitting\, I will also
  discuss the historical process associated to the rSBM and its connection 
 to the directed polymer model.\n	\n	\n	 \n\n \n
DTSTART:20241205T163000Z
DTEND:20241205T173000Z
LOCATION:Room 719A\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue
  Sherbrooke Ouest
SUMMARY:Thomas Hughes (Bath)
URL:/mathstat/channels/event/thomas-hughes-bath-361810
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