  In this paper a detailed Hamiltonian analysis of three-dimensional gravity
without dynamics proposed by V. Hussain is performed. We report the complete
structure of the constraints and the Dirac brackets are explicitly computed. In
addition, the Faddeev-Jackiw symplectic approach is developed; we report the
complete set of Faddeev-Jackiw constraints and the generalized brackets, then
we show that the Dirac and the generalized Faddeev-Jackiw brackets coincide to
each other. Finally, the similarities and advantages between Faddeev-Jackiw and
Dirac's formalism are briefly discussed.
