Lifting of projective representations of the Bondi—Metzner—Sachs group

@article{Mccarthy1978LiftingOP,
  title={Lifting of projective representations of the Bondi—Metzner—Sachs group},
  author={P. J. Mccarthy},
  journal={Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences},
  year={1978},
  volume={358},
  pages={141 - 171}
}
Following some motivating remarks on the role of group theory in physics, it is explained how a systematic study of the asymptotic symmetry group of general relativity, the Bondi-Metzner-Sachs group, can give some very general insights into the nature of the energy, momentum and angular momentum structure of curved (asymptotically flat) space-times, as well as of quantum theory in these space-times. In particular, a classical ‘ Bondi angular momentum ’ vector is defined for any 5-in variant… CONTINUE READING