Seminar series
Date
Tue, 13 Nov 2007
11:00
11:00
Location
L3
Speaker
Helmut Friedrich
Organisation
Allbert Einstein Institute
Static vacuum data and their conformal classes play an important role in the discussion of the smoothness of gravitational fields at null infinity. We study the question under which conditions such data admit non-trivial conformal rescalings which lead again to such data. Some of the restrictions implied by this requirement are discussed and it is shown that there exists a 3-parameter family of static vacuum data which are not conformally flat and which admit non-trivial rescalings.