Equivariant cohomology via relative homological algebra

Equivariant cohomology via relative homological algebra J. Huebschmann USTL, UFR de Mathematiques CNRS-UMR 8524 59655 Villeneuve d'Ascq Cedex, France Lausanne, July 11, 2008 1

• lie groupoids


• injective modules over


• cohomology functor


• various relative


• infinitesimal equivariant


• equiv coho via borel construction


• equivariant coho


• equivariant de rham theory


• standard construction


• compact group