Results 21 to 30 of about 505 (60)

Purity and hybridness of two tensors on a real hypersurface in complex projective space

open access: yesOpen Mathematics
On a real hypersurface MM in complex projective space, we can define two tensor fields of type (1, 2), AF(k){A}_{F}^{\left(k)} and AT(k){A}_{T}^{\left(k)}, associated with the shape operator AA of the real hypersurface, for any nonnull real number kk ...
Pérez Juan de Dios, Pérez-López David
doaj   +1 more source

III-harmonic Curves in SL2ℝ˜\widetilde {{\rm{S}}{{\rm{L}}_2}\mathbb{R}} Space

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science
Some work has been done in the study of non-geodesic III-harmonic curves in some model spaces. In this paper, we study III-harmonic curves in SL2ℝ˜\widetilde {{\rm{S}}{{\rm{L}}_2}\mathbb{R}} space. We give necessary and su cient conditions for helices to
Senoussi Bendehiba
doaj   +1 more source

From Golden Spirals to Constant Slope Surfaces

open access: yes, 2009
In this paper, we find all constant slope surfaces in the Euclidean 3-space, namely those surfaces for which the position vector of a point of the surface makes constant angle with the normal at the surface in that point.
Dillen F.   +7 more
core   +1 more source

Pointwise hemi-slant warped product submanifolds in nearly Kaehler manifolds

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
In this paper, we introduce the notion of pointwise hemi-slant sub-manifolds of nearly Kaehler manifolds. Further, we study their warped products and prove the necessary and sufficient condition that a point-wise hemi-slant submanifold to be a warped ...
Alqahtani Lamia Saeed   +2 more
doaj   +1 more source

Constant angle surfaces in product spaces. [PDF]

open access: yes
53B25;
Dillen, Franki, Kowalczyk, Daniel
core  

Complex product manifolds cannot be negatively curved

open access: yes, 2008
We show that if $M = X \times Y$ is the product of two complex manifolds (of positive dimensions), then $M$ does not admit any complete K\"ahler metric with bisectional curvature bounded between two negative constants.
Seshadri, Harish, Zheng, Fangyang
core  

Lie applicable surfaces and curved flats. [PDF]

open access: yesManuscr Math, 2022
Burstall F, Pember M.
europepmc   +1 more source

Biharmonic C-parallel Legendrian submanifolds in 7-dimensional Sasakian space forms

open access: yes, 2016
This paper corrects the classification result for biharmonic C-parallel Legendrian submanifolds presented by D. Fetcu and C. Oniciuc in [Tohoku Math. J.
Sasahara, Toru
core  

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