Session 10
Sun 11:00--11:20
| Meier
Which Artin groups are duality groups?
Gaglione
On a question of Sims I: Preliminaries
Session 11
Sun 11:30--11:50
| VanWyk
- On the Sigma-invariants of Artin groups
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Spellman
- On a question of Sims II: Theorems
Session 12
Sun 2:10--2:30
| Shapiro
- Generalizing Dehn's algorithm
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Swensen
- The algebraic torus theorem
Session 13
Sun 2:40--3:00
| Grunschlag
- Computing angles in hyperbolic groups
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