93 citations · 128 across the 2 of their papers we have counts for
2 papers
gr-qc2012★ 35 cited
On a five-dimensional version of the Goldberg-Sachs theorem
Marcello Ortaggio, Vojtech Pravda, Alena Pravdova +1
Previous work has found a higher-dimensional generalization of the "geodesic part" of the Goldberg-Sachs theorem. We investigate the generalization of the "shear-free part" of the…
gr-qc2010★ 93 cited
Generalization of the Geroch-Held-Penrose formalism to higher dimensions
Mark Durkee, Vojtech Pravda, Alena Pravdova +1
Geroch, Held and Penrose invented a formalism for studying spacetimes admitting one or two preferred null directions. This approach is very useful for studying algebraically specia…