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:20201101T060000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT UID:68b32217e7b97 DTSTART;TZID=America/Toronto:20210118T113000 SEQUENCE:0 TRANSP:TRANSPARENT DTEND;TZID=America/Toronto:20210118T113000 URL:/combinatorics-and-optimization/events/algebraic-gr aph-theory-seminar-shaun-fallat SUMMARY:Algebraic Graph Theory Seminar - Shaun Fallat CLASS:PUBLIC DESCRIPTION:Summary \n\nTITLE: Various Maximum Nullities Associated with a Graph\n\nSpeaker:\n Shaun Fallat\n\nAffiliation:\n University of Regina\n \nZoom:\n Contact Soffia Arnadottir\n\nABSTRACT:\n\nGiven a graph\, we ass ociate a collection of (typically symmetric)\nmatrices S whose pattern of non-zero entries off of the main diagonal\nrespects the edges in the graph . To this set\, we let M denote the\nmaximum possible nullity over all mat rices in S. Depending on the\nchoice of the set S\, and the family of grap hs considered\, the\nparameter M often corresponds to an interesting combi natorial\ncharacteristic (planarity\, connectivity\, coverings\, etc.) of the\nunderlying graph.\n DTSTAMP:20250830T160855Z END:VEVENT END:VCALENDAR