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DTSTART:20070311T020000
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DTSTAMP:20261004T220407
DTSTART;TZID=America/Detroit:20261007T150000
DTEND;TZID=America/Detroit:20261007T160000
SUMMARY:Workshop / Seminar:Reflection groups\, braid groups\, and geometric group theory
DESCRIPTION:Reflection groups\, such as the symmetries of a kaleidoscope\, are generated by reflections and are often finite. If we remove the mirrors and take the fundamental group of what is left\, we get braid groups: infinite groups that\, for example\, record how the roots of a polynomial move around. After a quick look at fundamental groups acting on spaces\, I will compare the relations in these two kinds of groups and see how they connect to geometry. Along the way\, we will get a feel for the kinds of questions geometric group theorists ask about such groups\, and why they ask them. The talk is aimed at first-year graduate students\; the only prerequisite is the fundamental group.
UID:153246-21915525@events.umich.edu
URL:https://events.umich.edu/event/153246
CLASS:PUBLIC
STATUS:CONFIRMED
CATEGORIES:Mathematics
LOCATION:East Hall - 1866
CONTACT:
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