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:6833d33dbb60c DTSTART;TZID=America/Toronto:20200806T143000 SEQUENCE:0 TRANSP:TRANSPARENT DTEND;TZID=America/Toronto:20200806T143000 URL:/combinatorics-and-optimization/events/algebraic-co mbinatorics-seminar-mushegh-shahinyan SUMMARY:Algebraic Combinatorics Seminar - Mushegh Shahinyan CLASS:PUBLIC DESCRIPTION:Summary \n\nTITLE: Counting the $c_2$ invariant on the circula nt family of graphs\n\nSpeaker:\n Mushegh Shahinyan\n\nAffiliation:\n Univ ersity of À¶Ý®ÊÓÆµ\n\nZoom:\n Contact Karen Yeats\n\nABSTRACT:\n\nThe alge bro-geometric invariant on Feynman Diagrams called the $c_2$\ninvariant is a useful tool for detecting properties of Feynman\nperiods. We present th is identity on graphs that originate from the\nscalar $\\phi_4$-theory wit h a purely combinatorial perspective and go\nover some strategies for comp uting it. We will further narrow our\nfocus onto the circulant family of g raphs and present some explicit\nresults.\n DTSTAMP:20250526T023437Z END:VEVENT END:VCALENDAR