Magdalena Zielenkiewicz:


Push-forwards in equivariant cohomology and iterated residues at infinity


Localization theorems for equivariant cohomology of varieties with torus action provide tools to express cohomological invariants (for example integrals) only in terms of the fixed points of the action. After giving a brief introduction to the equivariant cohomology theory, I will show how to express an integral (over a homogeneous space of a classical Lie group) as an iterated resiude at infinity of a certain function.