70 citations · 214 across the 24 of their papers we have counts for
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IDEAL characterization of vacuum pp-waves
Igor Khavkine, David McNutt, Lode Wylleman
An IDEAL characterization of a particular spacetime metric, , consists of a set of tensorial equations arising from expressions constructed from the metric, , it…
Observer-based invariants for cosmological models
Lode Wylleman, Alan Coley, David McNutt +1
We consider the equivalence problem for cosmological models in four-dimensional gravity theories. A cosmological model is considered as a triple consisting o…
Poynting vector, super-Poynting vector, and principal observers in electromagnetism and general relativity
Lode Wylleman, L. Filipe O. Costa, José Natário
In electromagnetism, the concept of Poynting vector as measured by an observer is well known. A mathematical analogue in general relativity is the super-Poynting vector of the Weyl…
Gravitomagnetism and the significance of the curvature scalar invariants
L. Filipe O. Costa, Lode Wylleman, José Natário
The curvature invariants have been subject of interest due to the debate concerning the notions of intrinsic/extrinsic frame-dragging, the use of the electromagnetic analogy in suc…
Finalizing the classification of type II or more special Einstein spacetimes in five dimensions
Lode Wylleman
Einstein spacetimes in 5d that are of genuine type II in the null alignment classification are considered. It is shown that the unique geodesic multiple Weyl aligned null direction…
Electric and magnetic Weyl tensors in higher dimensions
Sigbjørn Hervik, Marcello Ortaggio, Lode Wylleman
Recent results on purely electric (PE) or magnetic (PM) spacetimes in n dimensions are summarized. These include: Weyl types; diagonalizability; conditions under which direct (or w…