Project Details


Abstract Award: DMS-0406368 Principal Investigator: Ping Xu The proposal is to partially support a five-day workshop on "Groupoids and Stacks in Physics and Geometry", to be held at the Centre International de Rencontres Mathematiques (Luminy, France) from June 28 to July 2, 2004. The workshop is organized by PI with Kai Behrend from the University of British Columbia, Canada. One objective of the proposed workshop is to bring together the groupoid community (consisting of both differential geometers and operator algebraists) and the stack community, in order to encourage more interaction and cross-fertilization between these fields. PI also wishes to bring to the workshop physicists working on quantum field theory and string theory, since physics has been a steady source of ideas in the aforementioned subjects. Groupoids/stacks is a mathematical notion which arises naturally in order to study symmetries of objects such as finite parts of a crystal. It is related to mechanics, physics, and geometry. The subject may also have potential applications to biology. There are many bright young people working in these subjects around the world and this workshop will be a great opportunity to bring U.S. researchers, especially young people, to exchange their ideas with their international colleagues and to broaden their perspective. PI anticipates inviting many mathematicians at the postdoctoral and graduate student level (from the United States, Africa, Canada, and Europe) to the workshop.

Effective start/end date8/1/047/31/05


  • National Science Foundation: $25,000.00
  • National Science Foundation: $25,000.00


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