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On 4-dimensional Einsteinian manifolds with parallel null distribution [PDF]

open access: yesریاضی و جامعه, 2023
In this paper, we investigate the Einsteinian manifolds with parallel null distribution. For this purpose, we first obtain the equations, which are known as Einstein's equations, that lead to finding the mentioned manifolds and then, we reduce Einstein's
Mehdi Jafari
doaj   +1 more source

On the theory of algebraic invariants of vector spaces of Killing tensors

open access: yesJournal of Geometry and Physics, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Generalized teleparallel de Sitter geometries. [PDF]

open access: yesEur Phys J C Part Fields, 2023
Coley AA   +3 more
europepmc   +1 more source

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