COLLOQUIUM Braid foliations and the generalized Jones conjecture

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COLLOQUIUM
Braid foliations and the generalized
Jones conjecture
Department of
Mathematics
Professor Doug LaFountain
Western Illinois University
Thursday,
January 16, 2014
3:45 p.m.
204 Morgan Hall
Abstract: One-dimensional loops (so-called knots or links)
and
two-dimensional
fundamental
topology.
objects
surfaces
in
which
they
low-dimensional
enclose
are
geometry
and
In this talk we will consider links that wind
continuously around a one-dimensional axis, and which are
said to be braided about that braid axis. We will show that
when two braids co-bound embedded annuli, we can use how
these annuli intersect the braid axis, plus some additional
discrete data on the annuli, to solve a long-standing problem
in braid theory first conjectured by the Fields Medalist
Vaughan Jones.
No prior knowledge of any of these
ideas/terms will be assumed.
Refreshments will be
served at 3:30 p.m.
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