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20012026
most citedAlgebraic classification of higher dimensional spacetimes based on null alignment

102 citations · 1.3k across the 59 of their papers we have counts for

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59 papers

gr-qc2026

Charging higher-dimensional spacetimes with a generalized Kerr-Schild transformation

Aravindhan Srinivasan, Marcello Ortaggio

We explore the construction of higher-dimensional Einstein-Maxwell(-Chern-Simons) solutions from vacuum seeds by means of a generalized Kerr-Schild transformation along a geodesic…

gr-qc2026

On type II(D) Einstein spacetimes in six dimensions

David Kokoška, Marcello Ortaggio

After a concise overview of Einstein spacetimes of type II (or more special) in four and five dimensions, we summarize recent results in the six-dimensional case. We assume the opt…

gr-qc2025★ 2 cited

Einstein-Maxwell fields as solutions of Einstein gravity coupled to conformally invariant non-linear electrodynamics

Marcello Ortaggio

We study Einstein-Maxwell (non-null) sourcefree configurations that can be extended to any conformally invariant non-linear electrodynamics (CINLE) by a constant rescaling of the e…

gr-qc2025★ 2 cited

On the uniqueness of the Kerr-(A)dS metric as a type II(D) solution in six dimensions

David Kokoška, Marcello Ortaggio

We study the class of six-dimensional -vacuum spacetimes which admit a non-degenerate multiple Weyl aligned null direction l (thus being of Weyl type~II or more special) with a…

gr-qc2024★ 2 cited

All non-expanding gravitational waves in -dimensional (anti-)de Sitter space

Marcello Ortaggio, Jakub Voldřich, José Barrientos

We present a complete, theory-independent classification of -dimensional Kundt spacetimes of Weyl and traceless-Ricci type N. We show that these geometries consist of three inva…

gr-qc2024★ 3 cited

New look at AdS black holes with conformal scalar hair

Marcello Ortaggio

We revisit static, spherically symmetric solutions to AdS-Einstein gravity with a conformally coupled scalar field (and no self-interaction potential) in four dimensions. We first…