## Topology Seminar: Finiteness conditions for diagrams of spaces with applications to algebraic spheres

• Date: 10/28/2009
Lecturer(s):
Jim Clarkson (University of British Columbia)
Location:

University of British Columbia

Description:

In the 1960s, Wall developed a theory of finiteness obstructions for CW-complexes. We extend this result to diagrams of spaces and use it to investigate which homotopy G-spheres can be realized on a finite complex. We will conclude with some new examples of finite (non-linear, non-free) G spheres for some small groups G.

Schedule:

3:00 - 4:00pm, WMAX 110.