Adjoint operators and perturbation theory of black holes

Details Adjoint operators and perturbation theory of black holes Adjoint operators and perturbation theory of black holes

2002-04-16

arxiv.org/abs/gr-qc/0204052v1

J. Math. Phys., 41 (2000) 7521

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

LaTeX, 12 pages

Scientific paper

10.1063/1.1310358

We present a new approach for finding conservation laws in the perturbation theory of black holes which applies for the more general cases of non-Hermitian equations governing the perturbations. The approach is based on a general result which establishes that a covariantly conserved current can be obtained from a solution of any system of homogeneous linear differential equations and a solution of the adjoint system. It is shown that the results obtained from the present approach become essentially the same (with some diferences) to those obtained by means of the traditional methods in the simplest black hole geometry corresponding to the Schwarzschild space-time. The future applications of our approach for studying the perturbations of black hole space-time in string theory is discussed.

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