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A comment on Liu and Yau's positive quasi-local mass

N. O'Murchadha·L. B. Szabados·K. P. Tod
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Abstract

With the aid of a simple family of examples, we show that the quasi-local mass defined by Kijowski and Liu and Yau, and shown by Liu and Yau to be positive, may be strictly positive for space-like, topologically spherical 2-surfaces in flat space-time.

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N. O'Murchadha, L. B. Szabados, K. P. Tod. 2003-11-03. A comment on Liu and Yau's positive quasi-local mass. https://doi.org/10.1103/physrevlett.92.259001

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