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CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VTIMEZONE
TZID:Europe/Vienna
BEGIN:DAYLIGHT
DTSTART:20190331T030000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
TZNAME:CEST
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BEGIN:STANDARD
DTSTART:20191027T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:CET
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BEGIN:VEVENT
DTSTAMP:20260404T145835Z
UID:5c8a5b8a6c4dd604247178@ist.ac.at
DTSTART:20190814T130000
DTEND:20190814T141500
DESCRIPTION:Speaker: Amir Jafari\nhosted by Uli Wagner\nAbstract: On the Ch
 romatic Number of Kneser Graphs and Hypergraphs and Their Variants.'''\,ab
 stract = '''Some topological\, combinatorial and algebraic methods to deri
 ve bounds for chromatic number of Kneser graphs and hypergraphs will be pr
 esented. We will review the original methods of Lovasz using topology and 
 their extensions by Alon and Frankl to hypergraph version of Kneser graph.
  We present some other variants of Kneser graphs and hypergraphs and discu
 ss some bounds on their chromatic numbers.The results are obtained jointly
  with collaboration of Sharareh Alipour\, Soheil Azarpensar and Javad Mogh
 addam Zadeh.
LOCATION:Mondi Seminar Room 3\, Central Building\, ISTA
ORGANIZER:hwagner@ist.ac.at
SUMMARY:Amir Jafari: GeomTop Seminar: On the Chromatic Number of Kneser Gra
 phs and Hypergraphs and Their Variants
URL:https://talks-calendar.ista.ac.at/events/2055
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