BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4//
BEGIN:VEVENT
UID:20250816T044724EDT-0203KagU0t@132.216.98.100
DTSTAMP:20250816T084724Z
DESCRIPTION:Title: Ergodic theorems along trees.\n\n\n	Abstract: In the clas
 sical pointwise ergodic theorem for a probability measure preserving (pmp)
  transformation $T$\, one takes averages of a given integrable function ov
 er the intervals $\{x\, T(x)\, T^2(x)\, \hdots\, T^n(x)\}$ in front of the
  point $x$. We prove a “backward” ergodic theorem for a countable-to-one p
 mp $T$\, where the averages are taken over subtrees of the graph of T that
  are rooted at $x$ and lie behind $x$ (in the direction of $T^{-1}$). Surp
 risingly\, this theorem yields forward ergodic theorems for countable grou
 ps\, in particular\, one for pmp actions of free groups of finite rank\, w
 here the averages are taken along subtrees of the standard Cayley graph ro
 oted at the identity. This strengthens Bufetov’s theorem from 2000\, which
  was the most general result in this vein. This is joint work with Jenna Z
 omback.\n\n \n\nFor Zoom meeting information please contact dmitry.jakobso
 n [at] mcgill.ca\n
DTSTART:20210115T190000Z
DTEND:20210115T200000Z
SUMMARY:Anush Tserunyan (���ϲ�����)
URL:/mathstat/channels/event/anush-tserunyan-mcgill-32
 7559
END:VEVENT
END:VCALENDAR