from the n-category cafe'

from the n-category cafe'

[jim stasheff]

http://golem.ph.utexas.edu/category/2006/09/groupoids_and_stacks_in_physic.html#comments

  Groupoids and Stacks in Physics and Geometry


Posted by John Baez


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 From January 8th to April 6th of 2007, the Institut Henri Poincaré
will be running a program on:



     *




       Groupoids and Stacks
       in Physics and Geometry



If you don’t know about groupoids and stacks, or even if you do, try this
overview of the subject.




MathML-enabled post (click for more details).


The program on Groupoids and Stacks in Physics and Geometry will feature 
the following workshops:



     *  Higher structures in geometry and physics


       (Jan 15-Jan 19)

       Organizers: Alberto Cattaneo and Ping Xu

     *
       Quantum cohomology of stacks and string theory


       (Feb 12-Feb 16)

       Organizers: Kai Behrend, Barbara Fantechi and Andrew Kresch

     *
       Groupoids in operator algebras and noncommutative geometry


       (Feb 26-Mar 2)

       Organizers: Jean Renault and Jean-Louis Tu



There will also be a number of long courses, including:



     *




       Kai Behrend and Andrew Kresch,
       Introduction to stacks

     *


       Lawrence Breen, Categorical Structures and cohomology

     *


       Jean-Louis Tu, Operator Algebras, K-theory and groupoids
       (abstract)(résumé)

     *


       Ping Xu, Lie groupoids and Poisson geometry
       (abstract)




Some support is available for grad students to attend - see the program 
website.








Posted at September 13, 2006  8:30 AM UTC