Husain-Kuchar model as a constrained BF theory
Résumé
We write the Husain-Kuchar model as a constrained BF theory by giving an action principle for it. The action principle turns out to be very close to Plebanski action for general relativity; the difference with respect to gravity lies in the fact that the condition on the Lagrange multipliers of Plebanski's formulation is not present anymore in the constrained BF action for the Husain-Kuchar model reported in this paper.