Results 11 to 20 of about 880,230 (109)

Six-dimensional nearly Kähler manifolds of cohomogeneity one [PDF]

open access: yesJournal of Geometry and Physics, 2010
Let M be a six dimensional manifold, endowed with a cohomogeneity one action of G= SU_2 x SU_2, and M_reg its subset of regular points. We show that M_reg admits a smooth, 2-parameter family of G-invariant, non-isometric strict nearly Kaehler structures and that a 1-parameter subfamily of such structures smoothly extend over a singular orbit of type S ...
PODESTA', FABIO, A. SPIRO
openaire   +5 more sources

Warped product semi-slant submanifolds in locally conformal Kaehler manifolds

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2017
In 1994, in [13], N. Papaghiuc introduced the notion of semi-slant submanifold in a Hermitian manifold which is a generalization of CR- and slant-submanifolds. In particular, he considered this submanifold in Kaehlerian manifolds, [13]. Then, in 2007, V.
Koji Matsumoto
doaj   +3 more sources

A note on a totally umbilical proper slant submanifold of a nearly Kaehler manifold

open access: yesKuwait Journal of Science, 2013
In this paper, we study totally umbilical proper slant submanifolds of a nearly Kaehler manifold. We prove that every totally umbilical proper slant submanifold of a nearly Kaehler manifold is totally geodesic.  
KHUSHWANT SINGH   +2 more
doaj   +1 more source

Magnetic exchange interactions in binuclear and tetranuclear iron(III) complexes described by spin-flip DFT and Heisenberg effective Hamiltonians. [PDF]

open access: yesJ Comput Chem, 2023
Exchange interactions in polynuclear Fe (III) compounds are derived from ab initio calculations based on a single spin‐flip (1SF) approach. Abstract Low‐energy spectra of single‐molecule magnets (SMMs) are often described by Heisenberg Hamiltonians.
Kotaru S   +3 more
europepmc   +2 more sources

Isospectral nearly Kaehler manifolds [PDF]

open access: yes, 2017
We give an Ansatz to construct pairs of locally homogeneous nearly Kaehler manifolds that are isospectral for the Dirac and the Hodge Laplace operator in dimensions higher than six and investigate the existence of generic isospectral pairs in dimension six.
Vasquez, Jose J.
core   +4 more sources

CR submanifolds in Kaehler and nearly Kaehler manifolds [PDF]

open access: yes, 2004
A review of the study of CR, submanifolds within Kaehler and nearly Kaehler manifolds, and the properties of such manifolds with respect submanifold theory in differential geometry.
Gregg, Matthew Thomas
core   +6 more sources

On the Symmetries of a Kaehler Manifold [PDF]

open access: yes, 2023
The natural symmetries of Riemannian manifolds are described by the symmetries of its Riemann curvature tensor. In that sense, the most symmetric manifolds are the constant sectional curvature ones.
Albujer, Alma L.   +5 more
core   +2 more sources

Geometric Mechanics on Warped Product Semi-Slant Submanifold of Generalized Complex Space Forms

open access: yesAdvances in Mathematical Physics, 2021
In this study, we develop a general inequality for warped product semi-slant submanifolds of type Mn=NTn1×fNϑn2 in a nearly Kaehler manifold and generalized complex space forms using the Gauss equation instead of the Codazzi equation.
Yanlin Li, Ali H. Alkhaldi, Akram Ali
doaj   +1 more source

Hemi-slant submanifolds of nearly Kaehler manifolds

open access: yesGulf Journal of Mathematics, 2016
In the present paper, we study the hemi-slant submanifolds of nearly Kaehler manifolds. We study the integrability of distributions involved in the definition of hemi-slant submanifolds. Some results are worked out on totally umbilical hemi-slant submanifolds. We study the cohomology class for hemi-slant submanifolds of nearly Kaehler manifolds.
Mehraj Ahmad Lone   +2 more
openaire   +3 more sources

Critical review of 16S rRNA gene sequencing workflow in microbiome studies: From primer selection to advanced data analysis

open access: yesMolecular Oral Microbiology, Volume 38, Issue 5, Page 347-399, October 2023., 2023
Abstract The multi‐batch reanalysis approach of jointly reevaluating gene/genome sequences from different works has gained particular relevance in the literature in recent years. The large amount of 16S ribosomal ribonucleic acid (rRNA) gene sequence data stored in public repositories and information in taxonomic databases of the same gene far exceeds ...
Alba Regueira‐Iglesias   +3 more
wiley   +1 more source

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