Phys. Rev. Lett. 70, 367–370 (1993)New symmetries of the vacuum Einstein equationsReceived 8 September 1992; published in the issue dated 25 January 1993 Some new symmetry algebras are found for the vacuum Einstein equations. Among them there exists an infinite-dimensional algebra representing the symmetries analogous to the generalized symmetries of the integrable nonlinear partial differential equations. © 1993 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.70.367
DOI:
10.1103/PhysRevLett.70.367
PACS:
04.20.Jb, 04.20.Cv, 11.30.Na
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