Some remarks on topological 4d-gravity
arXiv:hep-th/9707084 · doi:10.1016/S0393-0440(97)00076-4
Abstract
We show that the method of S. Wu to study topological 4d-gravity can be understood within a now standard method designed to produce equivariant cohomology classes. Next, this general framework is applied to produce some observables of the topological 4d-gravity.
10 pages, Latex