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:20220313T070000 END:DAYLIGHT BEGIN:STANDARD TZNAME:EST TZOFFSETFROM:-0400 TZOFFSETTO:-0500 DTSTART:20211107T060000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT UID:686a6e0d4ea81 DTSTART;TZID=America/Toronto:20220719T143000 SEQUENCE:0 TRANSP:TRANSPARENT DTEND;TZID=America/Toronto:20220719T143000 URL:/combinatorics-and-optimization/events/graph-and-ma troids-seminar-matt-kroeker SUMMARY:Graph and Matroids Seminar - Matt Kroeker CLASS:PUBLIC DESCRIPTION:Summary \n\nTITLE: High-Rank Matroids and Unavoidable Flats\n\n Speaker:\n Matt Kroeker\n\nAffiliation:\n University of À¶Ý®ÊÓÆµ\n\nLocati on:\n MC 5417\n\nABSTRACT: We discuss a variety of questions and results p ertaining to\nconjectures of Geelen from 2021 on the unavoidable flats in matroids\nof sufficiently high rank. We will also explore the differences in how\nsuch questions are posed for various classes of matroids\, why suc h\ndifferences are necessary\, and how they could potentially be\nreconcil ed. A result for the class of binary matroids and an outline\nof its proof will be discussed in detail. Joint work with Jim Geelen.\n DTSTAMP:20250706T123733Z END:VEVENT END:VCALENDAR