Canonical equivariant extensions using classical Hodge theory (Q2575931)

The author obtains canonical equivariant extensions of closed forms in Hamiltonian actions of compact connected Lie groups on closed symplectic manifolds which have the strong Lefschetz property using the classical Hodge theory. The same result was obtained by Lin and Sjamaar by means of symplectic Hodge theory. The method of the author has the advantage of applying far more generally.