Results 51 to 60 of about 3,909 (125)

On certain real hypersurfaces of quaternionic projective space

International Journal of Mathematics and Mathematical Sciences, Volume 14, Issue 1, Page 205-207, 1991., 1991
We classify certain real hypersurfaces ot a quaternionic projective space satisfying the condition σ(R(X, Y)SZ) = 0.
Juan De Dios Perez, Florentino G. Santos
wiley   +1 more source

Weighted minimal translation surfaces in the Galilean space with density

Open Mathematics, 2017
Translation surfaces in the Galilean 3-space G3 have two types according to the isotropic and non-isotropic plane curves. In this paper, we study a translation surface in G3 with a log-linear density and classify such a surface with vanishing weighted ...
Yoon Dae Won
doaj   +1 more source

Submanifolds of Euclidean space with parallel mean curvature vector

International Journal of Mathematics and Mathematical Sciences, Volume 14, Issue 3, Page 533-536, 1991., 1990
The object of the paper is to study some compact submanifolds in the Euclidean space Rn whose mean curvature vector is parallel in the normal bundle. First we prove that there does not exist an n‐dimensional compact simply connected totally real submanifold in R2n whose mean curvature vector is parallel.
Tahsin Ghazal, Sharief Deshmukh
wiley   +1 more source

Some results and examples of the biharmonic maps with potential

Arab Journal of Mathematical Sciences, 2018
In this paper, we will study the class of biharmonic maps with potential, in the particular case represented by conformal maps between equidimensional manifolds. Some examples are constructed in particular cases (Euclidean space and sphere).
Abdelkader Zagane, Seddik Ouakkas
doaj  

η-Ricci Solitons on Sasakian 3-Manifolds

Annals of the West University of Timisoara: Mathematics and Computer Science, 2017
In this paper we study η-Ricci solitons on Sasakian 3-manifolds. Among others we prove that an η-Ricci soliton on a Sasakian 3-manifold is an η-Einstien manifold.
Majhi Pradip, De Uday Chand, Kar Debabrata   +2 more
doaj   +1 more source

Symmetries of f−associated standard static spacetimes and applications

Journal of the Egyptian Mathematical Society, 2017
The purpose of this note is to study and explore some collineation vector fields on standard static spacetimes If × M(also called f− associated SSST). Conformal vector fields, Ricci and matter collineations are studied.
H.K. El-Sayied, Sameh Shenawy, Noha Syied   +2 more
doaj  

Pluricomplex Green's functions and Fano manifolds [PDF]

Épijournal de Géométrie Algébrique, 2019
We show that if a Fano manifold does not admit Kahler-Einstein metrics then the Kahler potentials along the continuity method subconverge to a function with analytic singularities along a subvariety which solves the homogeneous complex Monge-Ampere ...
Nicholas McCleerey, Valentino Tosatti
doaj   +1 more source

EXISTENCE AND COMPACTNESS THEORY FOR ALE SCALAR-FLAT KÄHLER SURFACES

Forum of Mathematics, Sigma, 2020
Our main result in this article is a compactness result which states that a noncollapsed sequence of asymptotically locally Euclidean (ALE) scalar-flat Kähler metrics on a minimal Kähler surface whose Kähler classes stay in a compact subset of the ...
JIYUAN HAN, JEFF A. VIACLOVSKY
doaj   +1 more source

On some classes of mixed-super quasi-Einstein manifolds

Acta Universitatis Sapientiae: Mathematica, 2016
Quasi-Einstein manifold and generalized quasi-Einstein manifold are the generalizations of Einstein manifold. The purpose of this paper is to study the mixed super quasi-Einstein manifold which is also the generalizations of Einstein manifold satisfying ...
Dey Santu, Pal Buddhadev, Bhattacharyya Arindam   +2 more
doaj   +1 more source

Eta-Einstein condition on twistor spaces of odd-dimensional Riemannian manifolds [PDF]

arXiv, 2004
In this note, we find the conditions on an odd-dimensional Riemannian manifolds under which its twistor space is eta-Einstein.
arxiv