BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//talks.cam.ac.uk//v3//EN
BEGIN:VTIMEZONE
TZID:Europe/London
BEGIN:DAYLIGHT
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
TZNAME:BST
DTSTART:19700329T010000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0100
TZOFFSETTO:+0000
TZNAME:GMT
DTSTART:19701025T020000
RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
CATEGORIES:Isaac Newton Institute Seminar Series
SUMMARY:Knots and links from the Thompson groups - Vaughan
Jones (Vanderbilt University\; University of Cali
fornia\, Berkeley\; University of Auckland)
DTSTART;TZID=Europe/London:20170614T130000
DTEND;TZID=Europe/London:20170614T140000
UID:TALK73041AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/73041
DESCRIPTION:We will begin with a general procedure for constru
cting actions ofgroups of fractions of certain cat
egories and give a few examples of this procedure.
We then realise the Thompson groups F\, T and V as
groups of fractions of categories of forestsand o
btain many actions of these groups on many spaces.
By representing the category of forests on \;
Conway tangles one obtains constructions of knots
and links from F and T and we can show that \;
any link can be obtained in this way. Applying a T
QFT gives unitary representations on Hilbert space
whose coefficients are the TQFT link invariants.
LOCATION:Seminar Room 1\, Newton Institute
CONTACT:INI IT
END:VEVENT
END:VCALENDAR