[Binghamton Geometry Topology Seminar] GT Seminar: Daniel Gulbrandsen

[Cary Malkiewich]

Hi everyone,

This week we are pleased to have Daniel Gulbrandsen (University of Wisonsin
Milwaukee) speaking about cube complexes, title and abstract below.

This will be a *virtual talk*, but we'll project it in WH 100E for those
who want to come. In case you can't make it and would like to join
remotely, you can join at the link:

https://binghamton.zoom.us/j/2060048595

We'll also gather for lunch at 12pm just outside WH100E. See you there!

Best,
Cary and Roman

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*Title:* Cubical Collapses and a New Compactification of Locally-Finite
CAT(0) Cube Complexes
*Abstract:* In this talk we will define what it means for a cube complex to
be collapsible. In particular, our definition will apply to the case that
the complex is not finite. Then, we will show that all locally-finite
CAT(0) cube complexes are collapsible. The process will yield an inverse
sequence of finite convex subcomplexes whose inverse limit provides a
Z-compactification of the complex in which the boundary (which we call the
cubical boundary) incorporates properties of both the visual and Roller
boundaries.
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