Results 11 to 20 of about 15,598,050 (254)

Almost Contact B-metric Manifoldsas Extensions of a 2-dimensional Space-form [PDF]

open access: yesFilomat, 2016
summary:The object of investigations are almost contact B-metric manifolds which are derived as a product of a real line and a 2-dimensional manifold equipped with a complex structure and a Norden metric.
Manev, Hristo M.
core   +4 more sources

Totally Contact Umbilical Radical Transversal Lightlike Submanifolds Of An Almost Contact Manifold With B-Metric [PDF]

open access: yesJOURNAL OF ADVANCES IN MATHEMATICS, 2017
In the present paper, we study the geometry of totally contact umbilical radical transversal lightlike submanifolds and totally contact umbilical CR- submanifold of an indenite Sasaki-like almost contact manifold with B-metric.
Nagaich, R. K., Devgan, Anu
core   +3 more sources

MATRIX LIE GROUPS AS 3-DIMENSIONAL ALMOST CONTACT B-METRIC MANIFOLDS [PDF]

open access: yes, 2015
The object of investigation are Lie groups considered as almost contact B-metric manifolds of the lowest dimension three. A correspondence is established of all basic-class-manifolds of the Ganchev-Mihova-Gribachev classification of the studied manifolds
Hristo Manev, Manev, Hristo
core   +3 more sources

A classification of the torsion tensors on almost contact manifolds with B-metric [PDF]

open access: yesOpen Mathematics, 2014
AbstractThe space of the torsion (0,3)-tensors of the linear connections on almost contact manifolds with B-metric is decomposed in 15 orthogonal and invariant subspaces with respect to the action of the structure group. Three known connections, preserving the structure, are characterized regarding this classification.
Manev Mancho, Ivanova Miroslava
doaj   +4 more sources

Canonical-type connection on almost contact manifolds with B-metric [PDF]

open access: yesAnnals of Global Analysis and Geometry, 2012
11 pages, The final publication is available at http://www.springerlink ...
Manev, Mancho, Ivanova, Miroslava
openaire   +2 more sources

A semisymmetric metric connection on almost contact B−metric manifolds

open access: yesTURKISH JOURNAL OF MATHEMATICS, 2021
This paper is devoted to the study of a semi-symmetric metric connection on an almost contact \(B\)-metric manifold. Recall that an almost contact manifold is a \((2n+1)\)-manifold admitting a vector-valued linear map \(\varphi\), a vector field \(\xi\) and a \(1\)-form \(\eta\) such that \[ \eta(\xi) = 1, \qquad \varphi^2 x = -x + \eta(x)\xi, \] for ...
openaire   +1 more source

Ricci-like solitons on almost contact B-metric manifolds [PDF]

open access: yesJournal of Geometry and Physics, 2020
Ricci-like solitons with potential Reeb vector field are introduced and studied on almost contact B-metric manifolds. The cases of Sasaki-like manifolds and torse-forming potentials have been considered. In these cases, it is proved that the manifold admits a Ricci-like soliton if and only if the structure is Einstein-like.
openaire   +3 more sources

Structure connection in an almost contact metric manifold [PDF]

open access: yes, 1980
In 1970, semisymetric connection were studied by Yano [1] in a Riemannian manifold and in 1972 Mishra [2] studied affine connection in an almost contact Riemannian manifold.
Sinha, B. B., Yadava, S. L.
core   +2 more sources

Lie groups as 3-dimensional almost contact B-metric manifolds [PDF]

open access: yesJournal of Geometry, 2014
The object of investigations are almost contact B-metric structures on 3-dimensional Lie groups considered as smooth manifolds. There are established the existence and some geometric characteristics of these manifolds in all basic classes. An example is given as a support of obtained results.
Manev, Hristo, Mekerov, Dimitar
openaire   +3 more sources

Home - About - Disclaimer - Privacy