27 citations · 123 across the 14 of their papers we have counts for
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gr-qc2003★ 16 cited
Aligned electric and magnetic Weyl fields
Joan Josep Ferrando Juan Antonio Sáez
We analyze the spacetimes admitting a direction for which the relative electric and magnetic Weyl fields are aligned. We give an invariant characterization of these metrics and stu…
gr-qc2003★ 20 cited
Gravito-magnetic vacuum spacetimes: kinematic restrictions
J. J. Ferrando, J. A. Saez
We show that there are no vacuum solutions with a purely magnetic Weyl tensor with respect to an observer submitted to kinematic restrictions involving first order differential sca…
gr-qc2003★ 27 cited
A Rainich-like approach to the Killing-Yano tensors
J. J. Ferrando, J. A. Sáez
The Rainich problem for the Killing-Yano tensors posed by Collinson \cite{col} is solved. In intermediate steps, we first obtain the necessary and sufficient conditions for a 2+2 a…