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math.AT2001
Morse theory for the Yang-Mills functional via equivariant homotopy theory
U. Gritsch
In this paper we show the existence of non minimal critical points of the Yang-Mills functional over a certain family of 4-manifolds with generic SU(2)-invariant metrics using Mors…
math.AT1999
The Homotopy Type of hyperbolic Monopole Orbit Spaces
Ursula Gritsch
We prove that the space of gauge equivalence classes of U(1)-invariant connections on some SU(2)-principle bundles over the 4-sphere S^4 is weakly homotopy equivalent to a componen…