M
Marcello Ortaggio
Researcher at Academy of Sciences of the Czech Republic
Publications - 95
Citations - 2030
Marcello Ortaggio is an academic researcher from Academy of Sciences of the Czech Republic. The author has contributed to research in topics: Weyl tensor & Cosmological constant. The author has an hindex of 25, co-authored 91 publications receiving 1889 citations. Previous affiliations of Marcello Ortaggio include Charles University in Prague & University of Barcelona.
Papers
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Robinson?Trautman spacetimes in higher dimensions
Jiří Podolský,Marcello Ortaggio +1 more
TL;DR: In this article, the complete family of D = 4 field equations with an arbitrary cosmological constant and possibly an aligned pure radiation is presented in a closed explicit form, where the transverse spatial part of the general line element must be a Riemannian Einstein space, but it is otherwise arbitrary.
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Type D Einstein spacetimes in higher dimensions
TL;DR: In this article, it was shown that all static spacetimes in higher dimensions n > 4 are necessarily of Weyl types G, Ii, D or O, provided additional conditions are fulfilled, as for most known black hole/ring solutions.
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Ricci identities in higher dimensions
TL;DR: In this article, the authors explore connections between geometrical properties of null congruences and the algebraic structure of the Weyl tensor in n > 4 spacetime dimensions.
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Algebraic classification of higher dimensional spacetimes based on null alignment
TL;DR: In this paper, the classification of Weyl tensors in higher dimensional Lorentzian geometries is discussed. But the classification is not restricted to Weyl spacetimes.
Journal ArticleDOI
Robinson-Trautman spacetimes in higher dimensions
Jiri Podolsky,Marcello Ortaggio +1 more
TL;DR: In this paper, the complete family of field equations with an arbitrary cosmological constant and possibly an aligned pure radiation is presented in closed explicit form, where the transverse spatial part of the general line element must be a Riemannian Einstein space, but it is otherwise arbitrary.