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:20260308T070000
END:DAYLIGHT
BEGIN:STANDARD
TZNAME:EST
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
DTSTART:20251102T060000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:69d3b5dc773e1
DTSTART;TZID=America/Toronto:20260409T143000
SEQUENCE:0
TRANSP:TRANSPARENT
DTEND;TZID=America/Toronto:20260409T153000
URL:https://uwaterloo.ca/combinatorics-and-optimization/events/algebraic-an
 d-enumerative-combinatorics-seminar-mahrud-0
SUMMARY:Algebraic and enumerative combinatorics seminar - Mahrud\nSayrafi-C
 onstructing exceptional collections for toric varieties
CLASS:PUBLIC
DESCRIPTION:SPEAKER:\n Mahrud Sayrafi\n\nAFFILIATION:\n McMaster University
 \n\nLOCATION:\n MC 5417\n\nABSTRACT: Exceptional collections are a powerf
 ul tool for\nunderstanding the derived category of coherent sheaves on alg
 ebraic\nvarieties\, with applications in commutative algebra\, birational\
 ngeometry\, and mirror symmetry. While the existence of exceptional\ncolle
 ctions is known for classical varieties such as Grassmannians and\nflag va
 rieties\, constructing explicit collections for toric varieties\npresents 
 challenges in combinatorial algebraic geometry. In this talk\nI will descr
 ibe a computational approach to constructing full strong\nexceptional coll
 ections consisting of complexes of line bundles for\ntoric varieties. No b
 ackground in derived categories is assumed.\n\nTHERE WILL BE A PRE-SEMINAR
  PRESENTING RELEVANT BACKGROUND AT THE\nBEGINNING GRADUATE LEVEL STARTING
  AT 1:30PM.
DTSTAMP:20260406T133212Z
END:VEVENT
END:VCALENDAR