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gr-qc2002
A new class of obstructions to the smoothness of null infinity
J. A. Valiente-Kroon
Expansions of the gravitational field arising from the development of asymptotically Euclidean, time symmetric, conformally flat initial data are calculated in a neighbourhood of s…
gr-qc1999
On Killing vector fields and Newman-Penrose constants
J. A. Valiente-Kroon
Asymptotically flat spacetimes with one Killing vector field are considered. The Killing equations are solved asymptotically using polyhomogeneous expansions (i.e. series in powers…