|
Organizer | Prof. Alessandra Iozzi |
Place |
HG G 5 |
Time |
Thursday, 15.30 - 17:00 |
Organizational Meeting |
February 21 at 14:00 in HG G 43 (HWZ) |
Description |
After a short introduction to cube complexes (for those unfamiliar with the topic) we will focus on the paper F. Haglund, D. Wise: Special cube complexes, GAFA, 2008 (http://www.springerlink.com/content/q4t2224641r6n605) A cube complex is special if it has no "pathological" hyperplanes. The central result of the paper states that a special complex of non-positive curvature has linear fundamental group. This is proved by establishing a local isometry of such a complex with the standard complex of a right-angled Artin group. Other results concern the separability of quasiconvex subgroups and certain algebraic properties of pi_1. |
Date |
Speaker |
Topic |
15.03. |
Marco Nembrini |
Introduction to cube complexes |
22.03. |
Philipp Wirth |
Introduction to right-angled Artin groups |
29.03. |
Ruth Charney |
Introduction to special cube complexes |
05.04. |
-- |
|
12.04. |
-- |
|
19.04. |
Maria Hempel |
Canonical completion and retraction |
26.04. |
Pascal Rolli |
Separability of quasiconvex subgroups |
03.05. |
Beatrice Pozzetti |
Enough separable subgroups implies special |
10.05. |
Pascal Rolli |
Sageev-Roller duality, cubulations of groups |
17.05. |
-- |
|
24.05. |
Beatrice Pozzetti |
Boundaries and cubulations |
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