It is pointed out that there is no way to define linear momentum and supercharge for a generic solution to 2 + 1 supergravity, whose asymptotic symmetries only include time translations and spatial rotations. A Hamiltonian expression for the energy and the angular momentum is also given.
No takes yet. Share an insight, caveat, or question.
Marc Henneaux (1984) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: