Results 131 to 140 of about 884 (174)

Some Theorems on 3-dimensional Quasi-Sasakian Manifolds

open access: yes, 2012
[[abstract]]The object of the present paper is to study φ-Ricci symmetric and locally φ-Ricci symmetric 3-dimensional quasi-Sasakian manifolds with structure function β =constant.
Abul Kalam Mondal, Avik De
core  

Characterization of Sasakian manifolds

open access: yesAsian-European Journal of Mathematics
Weak almost contact manifolds, i.e., the linear complex structure on the contact distribution is replaced by a nonsingular skew-symmetric tensor, defined by the author and Wolak, allowed us to take a new look at the theory of contact manifolds.
openaire   +3 more sources

On a class of \(SP\)-Sasakian manifold

open access: yes, 1990
A para-Sasakian manifold, i.e. a special paracontact manifold with a structure \((\varphi,\xi,\eta,g)\), is called special para-Sasakian (shortly \(SP\)-Sasakian) if the 1-form \(\eta\) satisfies the equation \(\nabla d\eta=\varepsilon(-g+d\eta\otimes d\eta)\), \(\varepsilon=\pm 1\).
openaire   +2 more sources

RESEARCH ARTICLE OPEN ACCESS CR- Submanifolds of Nearly Hyperbolic Sasakian Manifold Endowed With A Quarter Symmetric Non-Metric Connection

open access: yes, 2014
We consider a nearly hyperbolic Sasakian manifold endowed with a quarter symmetric non-metric connection and study CR- submanifolds of nearly hyperbolic Sasakian manifold endowed with a quarter symmetric nonmetric connection.
Mobin Ahmad, Kashif Ali
core  

On 3-Dimensional Trans-Sasakian Manifold Admitting a Semi-Symmetric Metric Connection

open access: yes, 2019
The purpose of the present paper is to study 3-dimensional trans-Sasakian manifold admitting a semi-symmetric metric connection. Here we mainly study locally phi-symmetric and locally phi-concircularly symmetric 3-dimensional trans-Sasakian manifold ...
Vanlı, Aysel   +2 more
core  

Homogeneous G2 and Sasakian instantons on the Stiefel 7-manifold

open access: yes
We study homogeneous instantons on the seven dimensional Stiefel manifold V in the context of G2 and Sasakian geometry. According to the reductive decomposition of V we provide an explicit description of all invariant G2 and Sasakian structures.
Portilla, Luis E., Moreno, Andrés J.
core  

On a class of Sasakian manifolds

open access: yes, 2008
ARSLAN, KADRI   +3 more
openaire   +2 more sources

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