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arXiv · 1401.0074

Perturbative stability of the approximate Killing field eigenvalue problem

Christopher Beetle·Shawn Wilder
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Abstract

An approximate Killing field may be defined on a compact, Riemannian geometry by solving an eigenvalue problem for a certain elliptic operator. This paper studies the effect of small perturbations in the Riemannian metric on the resulting vector field. It shows that small metric perturbations, as measured using a Sobolev-type supremum norm on the space of Riemannian geometries on a fixed manifold, yield small perturbations in the approximate Killing field, as measured using a Hilbert-type square integral norm. It also discusses applications to the problem of computing the spin of a generic black hole in general relativity.

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Christopher Beetle, Shawn Wilder. 2013-12-31. Perturbative stability of the approximate Killing field eigenvalue problem. https://doi.org/10.1088/0264-9381/31/7/075009

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