Zobrazeno 1 - 3
of 3
pro vyhledávání: '"Cyriaque Atindogbé"'
Autor:
Cyriaque Atindogbé, Benjamín Olea
Publikováno v:
RIUMA. Repositorio Institucional de la Universidad de Málaga
instname
instname
We give conditions for a conformal vector field to be tangent to a null hypersurface. We particularize to two important cases: a Killing vector field and a closed and conformal vector field. In the first case, we obtain a result ensuring that a null
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fbe4edfaa58d466a8953b226f8c3024
https://doi.org/10.1007/s00025-022-01653-0
https://doi.org/10.1007/s00025-022-01653-0
Autor:
Cyriaque Atindogbé, Hippolyte Hounnon
Publikováno v:
Volume: 3, Issue: 1 70-85
Fundamental Journal of Mathematics and Applications
Fundamental Journal of Mathematics and Applications
We establish after some technical results a characterization of maximal null hypersurfaces in terms of a constant mean curvature screen foliation (in the slices) induced by the Chen's vector field. Thereafter, bounds are provided for both the squared
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b33e9808f9aa5b0569b9c8e6e66cdb8f
https://doi.org/10.33401/fujma.670266
https://doi.org/10.33401/fujma.670266
Publikováno v:
RIUMA. Repositorio Institucional de la Universidad de Málaga
instname
instname
The aim of this paper is to show how we can induce contact structures, contact metric structures and Sasaki structures on a null hypersurface from a rigging vector field. We give several explicit examples of this construction and some obstructions to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e898c1e4a56a9acfead9d072fcc96b05
https://doi.org/10.1016/j.geomphys.2022.104576
https://doi.org/10.1016/j.geomphys.2022.104576