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DTSTART:20210314T070000
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DTSTART:20211107T060000
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DTSTART;TZID=America/Toronto:20220208T150000
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URL:https://uwaterloo.ca/combinatorics-and-optimization/events/graphs-and-m
 atroids-seminar-sophie-spirkl-and-james-davies
SUMMARY:Graphs and Matroids Seminar - Sophie Spirkl and James Davies
CLASS:PUBLIC
DESCRIPTION:TITLE: Two counterexamples related to chi-boundedness\n\nSpeak
 er:\n Sophie Spirkl and James Davies\n\nAffiliation:\n University of Water
 loo\n\nZoom:\n Click here [http://http://matroidunion.org/?page_id=2477] o
 r please\nemail Shayla Redlin\n\nABSTRACT:\n\nThis will be a joint talk wi
 th two parts.\n\nSophie Spirkl: I will present a counterexample to the fol
 lowing\nwell-known conjecture: for every k\, r\, every graph G with clique
 \nnumber at most k and sufficiently large chromatic number contains a\ntri
 angle-free induced subgraph with chromatic number at least r. 
DTSTAMP:20260416T144741Z
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