Results 1 to 10 of about 13,708 (218)

Homaloidal hypersurfaces and hypersurfaces with vanishing Hessian [PDF]

open access: yesAdvances in Mathematics, 2008
56 pages. v2: Some material added in section 1; minor changes.
Aron Simis   +2 more
exaly   +6 more sources

Lightlike Hypersurfaces and Canal Hypersurfaces of Lorentzian Surfaces [PDF]

open access: yesAbstract and Applied Analysis, 2014
The lightlike hypersurfaces in semi-Euclidean space are of special interest in Relativity Theory. In particular, the singularities of these lightlike hypersurfaces provide good models for the study of different horizon types.
Jianguo Sun, Donghe Pei
doaj   +5 more sources

Coisotropic hypersurfaces in Grassmannians [PDF]

open access: yesJournal of Symbolic Computation, 2021
22 ...
Kohn, Kathlén,
openaire   +3 more sources

Hopf hypersurfaces [PDF]

open access: yes, 1999
This thesis is concerned with Hopf hypersurfaces of Kähler and nearly Kähler manifolds and gives special emphasis to the cases of hypersurfaces of complex projective spaces and of the 6-sphere endowed with its nearly Kähler almost complex structure ...
Martins, J.K., Martins, José Kenedy
core   +6 more sources

INVARIANT HYPERSURFACES [PDF]

open access: yesJournal of the Institute of Mathematics of Jussieu, 2020
AbstractThe following theorem, which includes as very special cases results of Jouanolou and Hrushovski on algebraic $D$-varieties on the one hand, and of Cantat on rational dynamics on the other, is established: Working over a field of characteristic zero, suppose $\unicode[STIX]{x1D719}_{1},\unicode[STIX]{x1D719}_{2}:Z\rightarrow X$ are dominant ...
Jason Bell, Rahim Moosa, Adam Topaz
openaire   +3 more sources

Hypersurfaces of the spherical type degenerated

open access: yesSelecciones Matemáticas, 2020
In this work, we define the hypersurfaces of the spherical type degenerated (in short DST-hypersurfaces), these hypersurfaces has the geometric property that the middle spheres pass through the origin of the Euclidean space.
Armando M. V. Corro   +2 more
doaj   +1 more source

Lightlike Hypersurfaces of Meta-Golden Semi-Riemannian Manifolds

open access: yesMathematics, 2023
In this research, we embark on the examination of lightlike hypersurfaces within an almost meta-Golden semi-Riemannian manifold. We investigate the properties of the induced structure on a lightlike hypersurface by meta-Golden semi-Riemannian structure ...
Feyza Esra Erdoğan   +3 more
doaj   +1 more source

Concurrent Vector Fields on Lightlike Hypersurfaces

open access: yesMathematics, 2020
Concurrent vector fields lying on lightlike hypersurfaces of a Lorentzian manifold are investigated. Obtained results dealing with concurrent vector fields are discussed for totally umbilical lightlike hypersurfaces and totally geodesic lightlike ...
Erol Kılıç   +2 more
doaj   +1 more source

Screen Semi-Invariant Lightlike Hypersurfaces on Hermite-Like Manifolds

open access: yesJournal of New Theory, 2023
Hermite-like manifolds, which admit two different, almost complex structures, can be considered a general concept of Hermitian manifolds. Factoring in the effects of these two complex structures on the radical, screen, and transversal spaces, a new ...
Ömer Aksu, Mehmet Gülbahar
doaj   +1 more source

Transport Theorem for Spaces and Subspaces of Arbitrary Dimensions

open access: yesMathematics, 2020
Using the apparatus of traditional differential geometry, the transport theorem is derived for the general case of a M-dimensional domain moving in a N-dimensional space, M ≤ N .
Jovo P. Jaric   +2 more
doaj   +1 more source

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