[Binghamton Geometry/Topology Seminar] Feb 16

[Dmytro Savchuk]

                   BINGHAMTON GEOMETRY/TOPOLOGY SEMINAR

*Date:*  Thursday, Feb 16, 2012

*Time:*  2:50-3:50pm
*Place:*  Library North 2205 followed by coffee/tea in the Anderson Reading
Room.

*Speaker:* Ross Geoghegan (Binghamton)

*Title: *Some remarks on horospherical limit points**
*
Abstract:*  When a group acts on a simply connected non-positively curved
space, such as Euclidean space, Hyperbolic space or a tree, the orbit of a
point can have limit points at infinity. There are various definitions of
what should be called a limit point. Some go back to the 19th century, some
modern, and each invented for a good reason. My talk will explore some of
these ideas with emphasis on new work I have been doing with Robert Bieri.
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