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March 26-28, 2010
Workshop on Torsors, Lie algebras and Galois Cohomology
University of Ottawa, 585 King Edward, Ottawa
Organizers: Erhard
Neher and Kirill
Zainoulline,
Department of Mathematics and Statistics,University of Ottawa
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Overview:
The theory of Lie algebras and the theory of torsors are well-established
areas of modern mathematics. The first deals with the study and
classification of (in-)finite dimensional Lie algebras and their
representations and has many applications in geometry, combinatorics
and mathematical physics. The second studies and classifies so-called
twisted forms of algebraic objects (example: associative algebras
that become matrix algebras after extending the base field to an
algebraic closure), and has many applications in algebraic geometry
and number theory. The bridge between these two areas is provided
by the Galois cohomology, an invariant which has been extensively
studied during the last decades.
The purpose of the mini-workshop is to bring together specialists
and young researchers (PhD's and postdocs) in these areas to discuss
recent developments and results, to provide an overview of the current
research and applications, and to advertise the area among students.
During the workshop Prof. Skip Garibaldi (Emory University, USA)
will give two introductory lectures on ``cohomological invariants
of linear algebraic groups", aimed for graduate students.
Confirmed speakers
Vladimir Chernousov (Alberta)
Skip Garibaldi (Emory)
Stefan Gille (München)
Nicole Lemire (Western)
Mark MacDonald (UBC)
Audrey Malagon (Mercer)
Ján Minác (Western) |
Alexander Ondrus (Alberta)
Zinovy Reichstein (UBC)
Aurel Meyer (UBC)
Arturo Pianzola (Alberta)
Jie Sun (Ottawa)
Angelika Welte (Ottawa) |
Registration
There are no registration fees. But the organizers would very much
appreciate registration by prospective participants. This will help
the organizers in their preparation.
Schedule
Explanation of building symbols:
LMX = Lamourreux
KED = 585 KED = 585 King Edward (Building of the Department)
Details on the campus map
of the University of Ottawa
| Friday, March 26 |
| Room LMX 390: (8:30 - 13:00) |
| 9:00 - 10:00 |
Skip Garibaldi (Emory University)
An introduction to cohomological and quadratic form invariants
- Part I |
| 10:00 - 10:30 |
Coffee Break |
| 10:30 - 11:30 |
Jan Minac (University of Western Ontario)
Galois Cinderella and her wicked stepsisters |
| 11:45 - 12:45 |
Nicole Lemire (University of Western Ontario)
The Essential Dimension of the Moduli Stack of Vector Bundles
over a Curve |
| lunch in Jazzy (University Centre) |
| Room KED
B005: (14:30 - 17:30) |
| 14:30 - 15:30 |
Audrey Malagon (Mercer University)
Killing Forms of Isotropic Lie Algebras |
| 15:30 - 16:00 |
Coffee Break (KED, lounge) |
| 16:00 - 17:00 |
Stefan Gille (Math Institut, University
of Munich)
The Rost nilpotence theorem for geometrically rational surfaces |
| 19:00 - Dinner (details to be announced) |
| Saturday, March 27 |
| Room KED B005 (8:30 - 18:00) |
| 9:00 - 10:00 |
Skip Garibaldi (Emory University)
An introduction to cohomological and quadratic form invariants
- Part II |
| 10:00 - 10:30 |
Coffee Break (KED, lounge) |
| 10:30 - 11:30 |
Vladimir Chernousov (University of Alberta)
On Grothendieck-Serre and Purity conjectures for groups of
type F4 |
| 11:45 - 12:45 |
Alex Ondrus (University of Alberta)
Minimal Anisotropic Groups of Higher Real Rank |
| Lunch (details to be announced) |
| 14:00 - 15:00 |
Angelika Welte (University of Ottawa)
Derivations of Albert algebras and central extensions of
C_3-graded Lie algebras |
| 15:15 - 16:15 |
Arturo Pianzola (University of Alberta)
Margaux's revenge: The MAD world of conjugacy for multiloop
algebras and groups |
| 16:15 - 16:45 |
Coffee Break |
| 16:45 - 17:45 |
Jie Sun (University of Ottawa)
Universal Central Extensions of Twisted Forms |
| 19:00 - Dinner |
| Sunday, March 28 |
| Room KED
B005 (8:30 - 18:00) |
| 9:00 - 10:00 |
Zinovy Reichstein (University of British
Columbia)
Versal torsors with a twist |
| 10:00 - 10:30 |
Coffee Break (KED, lounge) |
| 10:30 - 11:30 |
Aurel Meyer (University of British Columbia)
Algebraic tori, lattices, essential dimension |
| 11:45 - 12:45 |
Mark MacDonald (University of British Columbia)
Canoncial dimension of projective homogeneous varieties |
| departure and/or lunch |
Arrival and Departure Dates
The workshop will start on Friday morning and will end on Sunday,
early afternoon.
Participant List as of March 22, 2010:
| Full Name |
University Name |
| Baek, Sanghoon |
University of California, Los Angeles |
| Blunk, Mark |
University of British Columbia |
| Chernousov, Vladimir |
University of Alberta |
| Daigle, Daniel |
University of Ottawa |
| Dale Hill, John |
University of Ottawa |
| Dionne, Christopher |
Queen's University |
| Ducoat, Jerome |
Joseph Fourier University |
| Duncan, Alexander |
Unversity of British Columbia |
| El-Chaar, Caroline |
University of Ottawa |
| Gao, Ming |
York University |
| Garibaldi, Skip |
Emory University |
| Gille, Stefan |
University Munich |
| Grimm, David |
University of Konstanz |
| Junkins, Caroline |
McMaster University |
| Lau, Michael |
Université Laval |
| Lefebvre, Jerome |
University of British Columbia |
| Lemay, Joel |
University of Ottawa |
| Lemire, Nicole |
University of Western Ontario |
| MacDonald, Mark |
University of British Columbia |
| Malagon, Audrey |
Mercer University |
| Meyer, Aurel |
University of British Columbia |
| Minác, Ján |
University of Western Ontario |
| Minchenko, Andrey |
Cornell University |
| Morgan, Stephen |
University of Toronto |
| Neher, Erhard |
University of Ottawa |
| Nevins, Monica |
University of Ottawa |
| Nguyen, Athena |
University of British Columbia |
| Ondrus, Alexander |
University of Alberta |
| O'Shea, James |
University of Konstanz |
| Pianzola, Arturo |
University of Alberta |
| Racine, Michel |
University of Ottawa |
| Reichstein, Zinovy |
University of British Columbia |
| Sanchez Ortega, Juana |
Universidad de Malaga |
| Savage, Alistair |
University of Ottawa |
| Sun, Jie |
University of Ottawa |
| Weekes, Alex |
Carleton University |
| Welte, Angelika |
University of Ottawa |
| Zainoulline, Kirill |
University of Ottawa |
Travel Support
Funding will be available for graduate students and postdoctoral fellows.
The deadline for application for support was January 17, 2010. Funding
applicants will
be notified of the results by the end of January 2010.
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