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:20230312T070000 END:DAYLIGHT BEGIN:STANDARD TZNAME:EST TZOFFSETFROM:-0400 TZOFFSETTO:-0500 DTSTART:20221106T060000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT UID:682e3f9f2020c DTSTART;TZID=America/Toronto:20230601T150000 SEQUENCE:0 TRANSP:TRANSPARENT DTEND;TZID=America/Toronto:20230601T150000 URL:/combinatorics-and-optimization/events/graphs-and-m atroids-seminar-jim-geelen-3 SUMMARY:Graphs and Matroids Seminar - Jim Geelen CLASS:PUBLIC DESCRIPTION:Summary \n\nTITLE: Excluded-minor characteristics\n\nSpeaker:\n Jim Geelen\n\nAffiliation:\n University of À¶Ý®ÊÓÆµ\n\nLocation:\n MC 550 1\n\nABSTRACT: We review the excluded-minor characterizations for matroids \nover small fields and discuss the obstacles towards finding such a\nchar acterization for GF(5)-representability.\n DTSTAMP:20250521T210327Z END:VEVENT END:VCALENDAR