Zobrazeno 1 - 10
of 331
pro vyhledávání: '"Calvaruso Giovanni"'
We classify and describe totally geodesic and parallel hypersurfaces for the entire class of Siklos spacetimes. A large class of minimal hypersurfaces is also described.
Comment: 22 pages
Comment: 22 pages
Externí odkaz:
http://arxiv.org/abs/2310.20538
We classify parallel and totally geodesic hypersurfaces of the relevant class of G\"odel-type spacetimes, with particular regard to the homogeneous examples.
Comment: 20 pages
Comment: 20 pages
Externí odkaz:
http://arxiv.org/abs/2310.20529
Autor:
Calvaruso Giovanni, Perrone Antonella
Publikováno v:
Complex Manifolds, Vol 3, Iss 1 (2016)
Externí odkaz:
https://doaj.org/article/61111de1deea4bddac3204ec79e01d2d
Autor:
Calvaruso Giovanni
Publikováno v:
Open Mathematics, Vol 10, Iss 2, Pp 411-425 (2012)
Externí odkaz:
https://doaj.org/article/8bc0090be812435e96c97483edae808e
We consider the Anti-de Sitter space $\mathbb{H}^3_1$ equipped with Berger-like metrics, that deform the standard metric of $\mathbb{H}^3_1$ in the direction of the hyperbolic Hopf vector field. Helix surfaces are the ones forming a constant angle wi
Externí odkaz:
http://arxiv.org/abs/2301.07400
Autor:
Calvaruso Giovanni, Kowalski Oldrich
Publikováno v:
Open Mathematics, Vol 7, Iss 1, Pp 124-139 (2009)
Externí odkaz:
https://doaj.org/article/f0d8334e356e45a6b7bb93919ddac3bd
Autor:
Calvaruso Giovanni
Publikováno v:
Complex Manifolds, Vol 2, Iss 1 (2015)
We consider paraKähler Lie algebras, that is, even-dimensional Lie algebras g equipped with a pair (J, g), where J is a paracomplex structure and g a pseudo-Riemannian metric, such that the fundamental 2-form Ω(X, Y) = g(X, JY) is symplectic. A com
Externí odkaz:
https://doaj.org/article/699b9c9d5a1d4206a38fbc5a1a0e4266
Akademický článek
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We classify totally geodesic and parallel hypersurfaces of four-dimensional non-reductive homogeneous pseudo-Riemannian manifolds.
Externí odkaz:
http://arxiv.org/abs/1809.06631