University of California, Riverside - Department of Mathematics

GROUPOIDFEST 2008

Schedule

All talks will be held in Surge 284. Continental breakfasts and coffee breaks will be served in Surge 268.

Friday, November 21

15:00-16:00 UCR Special Math Colloquium - All Gfest participants are invited!
Groupoid Symmetry for Einstein's Equations?
Alan Weinstein
University of California, Berkeley, CA
Abstract
  
18:30 Colloquium Dinner at Mario's Place - Gfest participants are welcome to join, at their own expense. Reservation required by November 14!
  

Saturday, November 22

8:15-9:00 Breakfast
  
9:00-9:50 Equivariant K-theory for Proper Groupoids
Alan Paterson
Oxford, MS
Abstract
  
10:00-10:30 Application of Coactions to Direct Integrals
John Quigg
Arizona state University, Tempe, AZ
Abstract
  
10:30-11:00 Coffee Break
  
11:00-11:20 Group Extensions and Duality of Gerbes
Xiang Tang
Washington University, St. Louis, MO
Abstract
  
11:30-11:50 Groupoidified Linear Algebra
Christopher Walker
University of California, Riverside, CA
Abstract
  
12:00-12:20 Lie Groupoid Field Theories
Joris Vankerschaver
California Institute of Technnology, Pasadena, CA
Abstract
  
12:30-14:30 Lunch
  
14:30-15:20 On the Fundamental Group of II_1 Factors and Equivalence Relations
Sorin Popa
University of California, Los Angeles, CA
Abstract
  
15:30-16:00 The C*-Envelope of a Semicrossed Product
Justin R. Peters
Iowa State University, Ames, IA
Abstract
  
16:00-16:30 Coffee Break
  
16:30-16:50 A Categorification of Hecke Algebras
Alex Hoffnung
University of California, Riverside, CA
Abstract
  
17:00-17:20 Discrete Dirac Structures and Variational Discrete Dirac Mechanics
Melvin Leok
Purdue University, West Lafayette, IN
Abstract
  
19:00 Groupoidfest Dinner
  

Sunday, November 23

8:15-9:00 Breakfast
  
9:00-9:50 The Volume of a Differentiable Stack
Alan Weinstein
University of California, Berkeley, CA
Abstract
  
10:00-10:30 The Effros-Hahn Conjecture for Groupoids
Marius Ionescu
University of Connecticut, Storrs-Mansfield, CT
Abstract
  
10:30-11:00 Coffee Break
  
11:00-11:20 Groupoids and Structural Equivalence in Computational Calculi
Lucius Gregory Meredith
Biosimilarity LLC, Seattle, WA
Abstract
  
11:30-11:50 2-Vector Spaces and Groupoids
Jeffrey Morton
University of Western Ontario, London, Ontario, Canada
Abstract
  
12:00-12:50 Groupoidification
John Baez
University of California, Riverside, CA
Abstract
  



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