1966/05/01 by Ezra T. Newman, Roger Penrose · 29 citations
Physics and Astronomy · Mathematics · #Black Holes and Theoretical Physics #Noncommutative and Quantum Gravity Theories #Algebraic and Geometric Analysis #Group (periodic table) #Lorentz group #Lorentz transformation #Mathematics #Physics #Coordinate system #Space (punctuation) #Mathematical physics #Classical mechanics #Geometry #Quantum mechanics #Computer science
paper · doi:10.1063/1.1931221
openalex publication_date 1966/05/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/18
It is shown that, in space-times which are asymptotically flat, there are reasonable physical restrictions that allow one to impose coordinate conditions (in addition to the usual Bondi-type conditions)which restrict the allowed coordinate group to a subgroup of the Bondi-Metzner-Sachs group. This subgroup is isomorphic to the improper orthochronous inhomogeneous Lorentz group.