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DTSTART:20220313T070000
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DTSTART;TZID=America/Toronto:20220621T143000
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URL:/combinatorics-and-optimization/events/graphs-and-m
 atroids-seminar-alvaro-carbonero-gonzales
SUMMARY:Graphs and Matroids Seminar - Alvaro Carbonero Gonzales
CLASS:PUBLIC
DESCRIPTION:Summary \n\nTITLE: An into introduction to the chromatic number
  of digraph\n\nSpeaker:\n Alvaro Carbonero Gonzales\n\nAffiliation:\n Univ
 ersity of À¶Ý®ÊÓƵ\n\nRoom:\n MC 5417\, please contact Shalya Redlin for z
 oom link\n\nABSTRACT: A proper $k$-coloring of a digraph $D$ is a coloring
  of the\nvertices such that every color class is acyclic\, and the dichrom
 atic\nnumber of a digraph $D$ is the minimum number $k$ such that there is
  a\nproper $k$-coloring of $D$. Many questions about the chromatic number\
 ncan be asked about the dichromatic number\, but as one will quickly\nobse
 rve\, unsuspected complications arise when dealing with digraphs.\n 
DTSTAMP:20250523T153935Z
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