The First Law of Black Hole Mechanics

dc.creatorWald, Robert M.
dc.date1993-05-25
dc.date.accessioned2026-07-07T03:30:06Z
dc.date.available2026-07-07T03:30:06Z
dc.descriptionA simple proof of a strengthened form of the first law of black hole mechanics is presented. The proof is based directly upon the Hamiltonian formulation of general relativity, and it shows that the the first law variational formula holds for arbitrary nonsingular, asymptotically flat perturbations of a stationary, axisymmetric black hole, not merely for perturbations to other stationary, axisymmetric black holes. As an application of this strengthened form of the first law, we prove that there cannot exist Einstein-Maxwell black holes whose ergoregion is disjoint from the horizon. This closes a gap in the black hole uniqueness theorems.
dc.description9 pages, to appear in Misner Festschrift
dc.identifierhttps://arxiv.org/abs/gr-qc/9305022
dc.identifierhttp://arxiv.org/abs/gr-qc/9305022
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/35426
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleThe First Law of Black Hole Mechanics
dc.typetext

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