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Skye 284

Po-Ning Chen, UCR

Abstract: The definition of angular momentum in general relativity has been a subtle issue since the 1960s, due to the 'supertranslation ambiguity'.
In this talk, we will discuss how the mathematical theory of quasilocal mass and angular momentum leads to a new definition of angular
momentum at null infinity that is free of any supertranslation ambiguity.

This is based on joint work with Jordan Keller, Mu-Tao Wang, Ye-Kai Wang, and Shing-Tung Yau.

Type
Colloquium
Target Audience
General Public
Admission
Free
Registration Required
No
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