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Ignacio Ruiz (IFT) will present 'A new proof of the positive energy theorem' (Volume 80, pages 381–402, (1981))
Abstract:
A new proof is given of the positive energy theorem of classical general relativity. Also, a new proof is given that there are no asymptotically Euclidean gravitational instantons. (These theorems have been proved previously, by a different method, by Schoen and Yau.) The relevance of these results to the stability of Minkowski space is discussed.
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