EZ gauge is singular at the event horizon
arXiv:1804.00708 · doi:10.1088/1361-6382/aac730
Abstract
We prove that the EZ gauge of black-hole perturbation theory, introduced by the late Steve Detweiler in his exploration of the physical consequences of the gravitational self-force, is necessarily singular at the event horizon.
6 pages, revised after referee reports, matches published version
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