On a mass functional for initial data in 4+1 dimensional spacetime

Abstract

We consider a broad class of asymptotically flat, maximal initial data sets satisfying the vacuum constraint equations, admitting two commuting rotational symmetries. We construct a mass functional for `$t-{\varphi }^i$' symmetric data which evaluates to the ADM mass. We then show that $\mathbb{R}\times U(1{)}^2$-invariant solutions of the vacuum Einstein equations are critical points of this functional amongst this class of data. We demonstrate positivity of this functional for a class of rod structures which include the Myers-Perry initial data. The construction is a natural extension of Dain's mass functional to $D=5$, although several new features arise.

V2: 31 pages-Section 2.2 revised and lengthened (differs from published version); minor typos corrected

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Cited by in corpus (3)

• Geometrical inequalities bounding angular momentum and charges in General Relativity
• Remarks on mass and angular momenta for $U(1{)}^2$-invariant initial data
• Proof of the local mass-angular momenta inequality for $U(1{)}^2$ invariant black holes