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DTSTART:20240310T070000
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DTSTART:20231105T060000
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DTSTART;TZID=America/Toronto:20240618T140000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20240618T150000
URL:https://uwaterloo.ca/pure-mathematics/events/polish-groups-learning-sem
 inar-3
SUMMARY:Polish Groups Learning Seminar
CLASS:PUBLIC
DESCRIPTION:JASHAN BAL \n\nNon-Archimedean Polish Groups\n\nWe consider the
  class of Polish non-Archimedean groups\, those groups\nadmitting a base a
 t the identity of clopen subgroups. We give a\ncomplete characterization o
 f these groups as those groups isomorphic\nto automorphism groups of count
 able\, first-order structures. Time\npermitting\, we will also discuss van
  Dantzig's theorem. References\ninclude Section 2.4 of Gao's IDST along wi
 th Chapter 1 of Becker and\nKechris's DST of PGA.\n\nMC 5403
DTSTAMP:20260505T001913Z
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