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Separability of Gravitational Perturbation in Generalized Kerr-NUT-de Sitter Spacetime

Generalized Kerr-NUT-de Sitter spacetime is the most general spacetime which admits a rank-2 closed conformal Killing-Yano tensor. It contains the higher-dimensional Kerr-de Sitter black holes with partially equal angular momenta. We study the separability of gravitational perturbations in the generalized Kerr-NUT-de Sitter spacetime. We show that a certain type of tensor perturbations admits the separation of variables. The linearized perturbation equations for the Einstein condition are transformed into the ordinary differential equations of Fuchs type.

preprint2010arXivOpen access
Takeshi OotaYukinori Yasui
hep-th
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Takeshi OotaYukinori Yasui

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