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NCTS Seminar in Differential Geometry
 
11:00 - 12:00, August 24, 2016 (Wednesday)
Room 440, Astronomy-Mathematics Building, NTU
(台灣大學天文數學館 440室)
Quasi-Local Energy in Presence of Gravitational Radiations
Po-Ning Chen (University of California, Riverside)

In this talk, we discuss results on gravitational perturbations of black holes by evaluating quasi-local mass on surfaces of fixed size at the null infinity in a gravitational radiation. In particular, a general theorem regarding the decay rate of the quasi-local energy-momentum at infinity is proved and is applied to study the gravitational perturbation of the Schwarzschild solution. The theorem associates a 4-vector to each loop near null infinity, which encodes the distinctive features of a gravitational wave.

 

This talk is based on joint work with Mu-Tao Wang and Shing-Tung Yau.



 

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