Results 71 to 80 of about 3,909 (125)

A classification of spherical symmetric CR manifolds [PDF]

arXiv, 2007
In this paper we classify the simply connected, spherical pseudohermitian manifolds whose Webster metric is CR-symmetric.
arxiv  

Classification of contact structures associated with the CR-structure of the complex indicatrix

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017
By regarding the complex indicatrix as an embedded CR-hypersurface of the holomorphic tangent bundle in a fixed point, we analyze some aspects of the relations between its CR structure and the considered contact structure.
Popovici Elena
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On A-tensors in Riemannian geometry [PDF]

arXiv, 2008
We present examples, both compact and non-compact complete, of lo- cally non-homogeneous proper A-manifolds.
arxiv  

Almost Paracontact Manifolds [PDF]

arXiv, 2008
In this paper eleven basic classes of almost paracontact manifolds are introduced and some examples are constructed.
arxiv  

Ricci solitons on almost Kenmotsu 3-manifolds

Open Mathematics, 2017
Let (M3, g) be an almost Kenmotsu 3-manifold such that the Reeb vector field is an eigenvector field of the Ricci operator. In this paper, we prove that if g represents a Ricci soliton whose potential vector field is orthogonal to the Reeb vector field ...
Wang Yaning
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Vector bundles on Sasakian manifolds [PDF]

arXiv, 2008
We investigate the analog of holomorphic vector bundles in the context of Sasakian manifolds.
arxiv  

ParaSasakian manifolds with a constant paraholomorphic section curvature [PDF]

arXiv, 2008
In this paper paraSasakian manifolds with a constant paraholomorphic section curvature are considered.
arxiv  

On the uniqueness of Sasaki-Einstein metrics [PDF]

arXiv, 2009
Let $S$ be a compact Sasakian manifold which does not admit non-trivial Hamiltonian holomorphic vector fields. If there exists an Einstein-Sasakian metric on $S$, then it is unique.
arxiv  

Invariant, anti-invariant and slant submanifolds of a metallic Riemannian manifold

, 2018
Properties of invariant, anti-invariant and slant isometrically immersed submanifolds of metallic Riemannian manifolds are given with a special view towards the induced $\Sigma$-structure.
Blaga, Adara M., Hretcanu, Cristina E.
core  

Pseudo-slant submanifolds in cosymplectic space forms

Acta Universitatis Sapientiae: Mathematica, 2016
In this paper, we study the geometry of the pseudo-slant submanifolds of a cosymplectic space form. Necessary and sufficient conditions are given for a submanifold to be a pseudo-slant submanifold, pseudo-slant product, mixed geodesic and totally ...
Dirik Süleyman, Atçeken Mehmet
doaj   +1 more source