The Positive Mass and Isoperimetric Inequalities for Axisymmetric Black Holes in four and five dimensions

Abstract

In this paper we revisit Brill's proof of positive mass for three-dimensional, time-symmetric, axisymmetric initial data and generalise his argument in various directions. In 3+1 dimensions, we include an apparent horizon in the initial data and prove the Riemannian Penrose inequality in a wide number of cases by an elementary argument. In the case of 4+1 dimensions we obtain the analogue of Brill's formula for initial data admitting a generalised form of axisymmetry. Including an apparent horizon in the initial data, the Riemannian Penrose inequality is again proved for a large class of cases. The results may have applications in numerical relativity.

arXiv comment21 pages, 3 figures

References in corpus (2)

• Generalized Weyl Solutions
• Collapsing Shells and the Isoperimetric Inequality for Black Holes

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