Abstract
We construct a bordification of Outer Space analogous to the Borel-Serre bordification of symmetric spaces. As an application, we show that Out(Fn) is (2n - 5)-connected at infinity and that it is a virtual duality group of dimension 2n - 3.
Original language | English (US) |
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Pages (from-to) | 651-692 |
Number of pages | 42 |
Journal | Inventiones Mathematicae |
Volume | 140 |
Issue number | 3 |
DOIs | |
State | Published - 2000 |
All Science Journal Classification (ASJC) codes
- General Mathematics