@HarmonicApprox @martinmbauer @Kaju_Nut theorem. But this is the counterexample: https://t.co/cfVG9IX5DS It's possible to use the arguments here though to explicitly construct initial data like what I described, for a small negative mass exterior region,
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@Quasilocal @mcnees I couldn’t prove it, so it has to be false 😏 https://t.co/yfeiELN6Lg
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@RobJLow This is the paper I was looking at: https://t.co/cfVG9IX5DS And I think this is a Masters' thesis or something that talks about it at a quite approachable level (which I plan on reading after laundry tonight, or maybe tomorrow): https://t.co/6pHEh