The rational topology of gauge groups and of spaces of connections
Abstract
Description
Let P be a principal bundle with semisimple compact simply connected structure group G over a compact simply connected four-manifold M. In this note we give explicit formulas for the rational homotopy groups and cohomology algebra of the gauge group and of the space of (irreducible) connections modulo gauge transformations for any such bundle.
12 pages, to appear in Compositio Mathematica
12 pages, to appear in Compositio Mathematica