TETRAHEDRAL GEOMETRY/TOPOLOGY SEMINAR
ANNOUNCEMENT
DATE: Friday, April 4,
2008
LOCATION: Hempfield
High School, Room 213 (directions at http://www.millersville.edu/~tgts/)
followed by
dinner at a place to be determined.
4:30 TALK: David
Richeson,
“Itineraries
of rigid rotations of the circle”
Let f:S^1-->S^1 be the rigid rotation of the circle (S^1=R/Z)
given by f(x)=x+a (mod 1)
and let I be a
finite set of closed intervals in S^1. Each x in S^1 has an associated
itinerary
(a_0, a_1, a_2,...), where a_i=1 if f^i(x) is in I and a_i=0,
otherwise. In this talk we discuss
whether these
itineraries are unique. That is, given only an itinerary, is it possible to
determine a, I,
and x? If so, how do we recover these values?
EVERYONE WELCOME
PLEASE FORWARD THIS ANNOUNCEMENT TO ANYONE
INTERESTED
The Tetrahedral Geometry/Topology Seminar is
sponsored jointly by