Alvarez, Pedro D.Pais, PabloRodríguez, EduardoSalgado-Rebolledo, PatricioZanelli, Jorge2023-01-032023-01-032014Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics Volume 738, Pages 134 - 135November 10, 2014Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics Volume 738, Pages 134 - 135November 10, 20140370-2693https://repositorio.unab.cl/xmlui/handle/ria/35757Indexación: ScopusIt is shown that 2+1 dimensional anti-de Sitter spacetimes are Lorentz-flat. This means, in particular, that any simply-connected patch of the BTZ black hole solution can be endowed with a Lorentz connection that is locally pure gauge. The result can be naturally extended to a wider class of black hole geometries and point particles in three-dimensional spacetime. © 2014 The Authors.enSupergravityGravitationBlack HolesArtículohttps://creativecommons.org/licenses/by/4.0/deed.es10.1016/j.physletb.2014.09.032