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:20170312T070000 END:DAYLIGHT BEGIN:STANDARD TZNAME:EST TZOFFSETFROM:-0400 TZOFFSETTO:-0500 DTSTART:20161106T060000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT UID:68277ddc28bde DTSTART;TZID=America/Toronto:20170914T153000 SEQUENCE:0 TRANSP:TRANSPARENT DTEND;TZID=America/Toronto:20170914T153000 URL:/combinatorics-and-optimization/events/algebraic-gr aph-theory-seminar-john-sinkovic-1 SUMMARY:Algebraic Graph Theory Seminar - John Sinkovic CLASS:PUBLIC DESCRIPTION:Summary \n\nTITLE: Using eigenvalues to bound the independence number of a graph\n\nSpeaker:\n John  Sinkovic\n\nAffiliation:\n Univers ity of À¶Ý®ÊÓÆµ\n\nLocation:\n MC 6486\n\nABSTRACT:\n\nFinding a maximum i ndependent set (or clique) in an arbitrary graph\nhas been shown to be NP- hard.  As any independent set gives a lower\nbound on the independence nu mber\, determining an upper bound is\nusually more useful. \n DTSTAMP:20250516T180308Z END:VEVENT END:VCALENDAR