Abstract
Since this report belongs to the general plenary session, I thought it would be best to present a review of the current status of the field in broad terms. Thus, I will omit all proofs and try to convey the essential ideas instead. Furthermore, in the main text, technical points will be occasionally skipped, and, in some cases, results presented will not be the most general ones available today. The hope is that the style adopted will facilitate non-experts to get a good feeling for the type of issues that are discussed in the field. I must say, however, that the discussion is not evenly distributed among the various topics of interest: the emphasis is on the material which was published during the last three or four years and which is not covered in other talks at this conference. The experts will find that some of the material is presented from a new angle — the relation between the conformally rescaled and physical space-time quantities is stressed — and that a few of the ideas are new (in the sense that they have not appeared in print before).
Alfred P. Sloan Research Fellow. Work supported in part by the NSF contract PHY 80 08155 with Syracuse University.
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Ashtekar, A. (1984). Asymptotic Properties of Isolated Systems: Recent Developments. In: Bertotti, B., de Felice, F., Pascolini, A. (eds) General Relativity and Gravitation. Fundamental Theories of Physics, vol 9. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-6469-3_4
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