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Quasi-Statistical Manifolds with Almost Hermitian and Almost Anti-Hermitian Structures

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
Let (M, g, ∇) be a 2n-dimensional quasi-statistical manifold that admits a pseudo-Riemannian metric g (or h) and a linear connection ∇ with torsion. This paper aims to study an almost Hermitian structure (g, J ) and an almost anti-Hermitian structure (h,
Aktaş Buşra, Gezer Aydin, Durmaz Olgun
doaj   +2 more sources

NOTES ON CRITICAL ALMOST HERMITIAN STRUCTURES [PDF]

open access: yesBulletin of the Korean Mathematical Society, 2010
We discuss the critical points of the functional F‚,µ(J,g) = R M (‚?+µ? ⁄ )dvg on the spaces of all almost Hermitian structures AH(M) with (‚,µ) 2 R 2 i (0,0), where ? and ? ⁄ being the scalar curvature and the ⁄-scalar curvature of (J,g), respectively.
Kouei Sekigawa
exaly   +2 more sources

Chern-flat and Ricci-flat invariant almost Hermitian structures

open access: yesAnnals of Global Analysis and Geometry, 2010
Let \((M, g, J)\) be an almost Hermitian manifold and \(\nabla \) its Chern connection, which in the quasi-Kähler case coincides with the so-called second canonical Hermitian connection. Let \(R\) be the curvature tensor and \(\text{Ric}(J)(X, Y):=\frac{1}{2}Tr_{\omega }R(X, Y, \cdot, \cdot )\) be the Ricci form of \(\nabla \), where \(\omega \) is the
Luigi Vezzoni   +2 more
exaly   +4 more sources

Almost Hermitian structure on $S^6$ [PDF]

open access: yesTohoku Mathematical Journal, 1955
Shigeru Ishihara
exaly   +3 more sources

ALMOST HERMITIAN STRUCTURES [PDF]

open access: yesTotal Mean Curvature and Submanifolds of Finite Type, 1995
exaly   +2 more sources

Almost Kaehlerian and Hermitian Structures on Four Dimensional Indecomposable Lie Algebras

open access: yesUniversal Journal of Mathematics and Applications, 2022
It is known that from a given almost Hermitian structure on a simply connected Liegroup, one can obtain left-invariant almost Hermitian structure on its Lie algebra.In this work, we consider Mubarakzyanov’s classification of four-dimensional realLie ...
Mehmet Solgun
doaj   +1 more source

On nearly Kählerian manifolds and quasi-Sasakian hypersurfaces axiom

open access: yesДифференциальная геометрия многообразий фигур, 2021
It is known that an almost contact metric structure is induced on an arbitrary hypersurface of an almost Hermitian manifold. The case when the almost Hermitian manifold is nearly Kählerian and the almost contact metric structure on its hypersurface is ...
G.A. Banaru
doaj   +1 more source

On stability of Hermitian structures on 6-dimensional planar submanifolds of Cayley algebra

open access: yesДифференциальная геометрия многообразий фигур, 2021
We consider 6-dimensional planar submanifolds of Cayley algebra. As it is known, the so-called Brown — Gray three-fold vector cross prod­ucts induce almost Hermitian structures on such submanifolds. We select the case when the almost Hermitian structures
M.B. Banaru, G.A. Banaru
doaj   +1 more source

Nearly Sasakian Manifolds of Constant Type

open access: yesAxioms, 2022
The article deals with nearly Sasakian manifolds of a constant type. It is proved that the almost Hermitian structure induced on the integral manifolds of the maximum dimension of the first fundamental distribution of the nearly Sasakian manifold is a ...
Aligadzhi Rustanov
doaj   +1 more source

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