G. Eskin

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Articles: 1

Ergoregions between two ergospheres

MFAT 24 (2018), no. 2, 98-106

98-106

For a stationary spacetime metric, black holes are spatial regions out of which disturbances do not propagate. In our previous work an existence and regularity theorem was proven for black holes in two space dimensions, in the case where the boundary of the ergoregion is a simple closed curve surrounding a singularity. In this paper we study the case of an annular ergoregion, whose boundary has two components.

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