A 3-METHOD FOR FINDING PRINCIPAL NULL DIRECTIONS(1)

Authors
GUNNARSEN L SHINKAI HA MAEDA KI
Citation
L. Gunnarsen et al., A 3-METHOD FOR FINDING PRINCIPAL NULL DIRECTIONS(1), Classical and quantum gravity, 12(1), 1995, pp. 133-140
Citations number
14
Categorie Soggetti
Physics
Journal title
Classical and quantum gravity → ACNP
ISSN journal
02649381
Volume
12
Issue
1
Year of publication
1995
Pages
133 - 140
Database
ISI
SICI code
0264-9381(1995)12:1<133:A3FFPN>2.0.ZU;2-1
Abstract
We present a new method for finding principal null directions (PNDs). Because our method assumes as an input the intrinsic metric and extrin sic curvature of a space-like hypersurface, we expect it will be usefu l to numerical relativists; We illustrate our method by finding the PN Ds of the Kastor-Traschen spacetimes, which contain arbitrarily many Q = M black holes in a de Sitter background.