BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Drupal iCal API//EN
X-WR-CALNAME:Events items teaser
X-WR-TIMEZONE:America/Toronto
BEGIN:VTIMEZONE
TZID:America/Toronto
X-LIC-LOCATION:America/Toronto
BEGIN:DAYLIGHT
TZNAME:EDT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
DTSTART:20200308T070000
END:DAYLIGHT
BEGIN:STANDARD
TZNAME:EST
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
DTSTART:20191103T060000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:69d387b3c491c
DTSTART;TZID=America/Toronto:20200911T153000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20200911T153000
URL:https://uwaterloo.ca/combinatorics-and-optimization/events/tutte-colloq
 uium-luke-postle-1
SUMMARY:Tutte Colloquium - Luke Postle
CLASS:PUBLIC
DESCRIPTION:TITLE: Further progress towards Hadwiger's conjecture\n\nSpeak
 er:\n Luke Postle\n\nAffiliation:\n University of Waterloo\n\nZoom:\n Plea
 se email Emma Watson.\n\nABSTRACT:\n\nIn 1943\, Hadwiger conjectured that
  every graph with no $K_t$ minor is\n$(t-1)$-colorable for every $t\\ge 1$
 . In the 1980s\, Kostochka and\nThomason independently proved that every 
 graph with no $K_t$ minor has\naverage degree $O(t\\sqrt{\\log t})$ and he
 nce is $O(t\\sqrt{\\log\nt})$-colorable. 
DTSTAMP:20260406T101515Z
END:VEVENT
END:VCALENDAR