Gravitational instantons

Details Gravitational instantons Gravitational instantons

Feb 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977phla...60...81h&link_type=abstract

Physics Letters A, Volume 60, Issue 2, p. 81-83.

Physics

177

Scientific paper

By analogy with Yang-Mills' theory, gravitational instantons are defined to be solutions of the classical Einstein equations which are non-singular on some section of complexified spacetime and in which the curvature dies away at large distances. The Schwarzschild and Taub-NUT solutions are simple examples, the latter being self-dual. A many Taub-NUT solution is also given. The significance of the two integrals in the curvature which are pure divergences is discussed.

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