20 citations · 38 across the 3 of their papers we have counts for
Showing gr-qcShow all
3 papers · 1 filter
gr-qc2010★ 11 cited
Approximate twistors and positive mass
Thomas Bäckdahl, Juan A. Valiente Kroon
In this paper the problem of comparing initial data to a reference solution for the vacuum Einstein field equations is considered. This is not done in a coordinate sense, but throu…
gr-qc2009★ 7 cited
Relating the Newman-Penrose constants to the Geroch-Hansen multipole moments
Thomas Bäckdahl
In this paper, we express the Newman--Penrose constants in terms of the Geroch--Hansen multipole moments for stationary spacetimes. These expressions are translation-invariant comb…
gr-qc2006★ 20 cited
Axisymmetric stationary solutions with arbitrary multipole moments
Thomas Bäckdahl
In this paper, the problem of finding an axisymmetric stationary spacetime from a specified set of multipole moments, is studied. The condition on the multipole moments, for existe…