2026-06-27T10:18:10Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/649792023-08-27T05:43:35Zcom_20.500.14352_14col_20.500.14352_15

Chinea Trujillo, Francisco Javier 2023-06-21T02:08:55Z 2023-06-21T02:08:55Z 1983 0031-9007 10.1103/PhysRevLett.50.221 https://hdl.handle.net/20.500.14352/64979 http://dx.doi.org/10.1103/PhysRevLett.50.221 http://journals.aps.org Vector Bäcklund transformations which relate solutions of the vacuum Einstein equations having two commuting Killing fields are introduced. Such transformations generalize those found by Pohlmeyer in connection with the nonlinear δ model. A simple algebraic superposition principle, which permits the combination of Bäcklund transforms in order to get new solutions, is given. The superposition preserves the asymptotic flatness condition, and the whole scheme is manisfestly O(2, 1) invariant. eng open access New backlund-transformations and superposition principle for gravitational-fields with symmetries journal article