Topology and related seminars: Daniel Wise
- Date: 10/28/2016
- Time: 11:10
Lecturer(s):
Daniel Wise, McGill
Location:
University of British Columbia
Topic:
Nonpositive Immersions and Counting Cycles
Description:
The "nonpositive immersion" property is a condition on a 2-complex X that generalizes being a surface. When X has this property, its fundamental group appears to have has some very nice properties which I will discuss. I will spend the remainder of the talk outlining a proof that the nonpositive immersion property holds for a 2-complex obtained by attaching a single 2-cell to a graph. This was proven recently with Joseph Helfer and also independently by Lars Louder and Henry Wilton.
Other Information:
Location: ESB 4133 (PIMS Lounge)