Results 21 to 30 of about 18,204 (186)

Conformal Quasi-Hemi-Slant Riemannian Maps

open access: yesCommunications in Advanced Mathematical Sciences, 2022
In this paper, we state some geometric properties of conformal quasi-hemi-slant Riemannian maps from almost Hermitian manifolds to Riemannian manifolds.
Şener Yanan
doaj   +1 more source

Screen Semi-Invariant Lightlike Hypersurfaces on Hermite-Like Manifolds

open access: yesJournal of New Theory, 2023
Hermite-like manifolds, which admit two different, almost complex structures, can be considered a general concept of Hermitian manifolds. Factoring in the effects of these two complex structures on the radical, screen, and transversal spaces, a new ...
Ömer Aksu, Mehmet Gülbahar
doaj   +1 more source

Biharmonic almost complex structures

open access: yesForum of Mathematics, Sigma, 2023
This project uses methods in geometric analysis to study almost complex manifolds. We introduce the notion of biharmonic almost complex structure on a compact almost Hermitian manifold and study its regularity and existence in dimension four.
Weiyong He
doaj   +1 more source

On the Kähler-likeness on almost Hermitian manifolds

open access: yesComplex Manifolds, 2019
We define a Kähler-like almost Hermitian metric. We will prove that on a compact Kähler-like almost Hermitian manifold (M2n, J, g), if it admits a positive ∂ ̄∂-closed (n − 2, n − 2)-form, then g is a quasi-Kähler metric.
Kawamura Masaya
doaj   +1 more source

On a property of W4 -manifolds

open access: yesДифференциальная геометрия многообразий фигур, 2020
The properties of almost Hermitian manifolds belonging to the Gray — Hervella class W4 are considered. The almost Hermitian manifolds of this class were studied by such outstanding geometers like Alfred Gray, Izu Vaisman, and Vadim Feodorovich Kirichenko.
M.B. Banaru
doaj   +1 more source

Clairaut slant submersion from almost Hermitian manifolds [PDF]

open access: yesMathematica Moravica
Our main aim is to introduce Clairaut slant submersions in complex geometry. We give the notion of Clairaut slant submersions from almost Hermitian manifolds onto Riemannian manifold in this article. We obtain some basic results on discussed submersions.
Kumar Sushil   +2 more
doaj   +1 more source

Generic Riemannian maps [PDF]

open access: yes, 2017
WOS: 000406745600041As a generalization of semi-invariant Riemannian maps from almost Hermitian mani-fols, we first introduce generic Riemannian maps from almost Hermitian manifolds to Riemannian manifolds, give examples, obtain decomposition theorems ...
Sahin, Bayram
core   +1 more source

Differential operators on almost-Hermitian manifolds and harmonic forms

open access: yesComplex Manifolds, 2020
We consider several differential operators on compact almost-complex, almost-Hermitian and almost-Kähler manifolds. We discuss Hodge Theory for these operators and a possible cohomological interpretation.
Tardini Nicoletta, Tomassini Adriano
doaj   +1 more source

Quasi-K\"ahler Chern-flat manifolds and complex 2-step nilpotent Lie algebras [PDF]

open access: yes, 2011
The study of quasi-K\"ahler Chern-flat almost Hermitian manifolds is strictly related to the study of anti-bi-invariant almost complex Lie algebras.
Di Scala, Antonio J.   +2 more
core   +2 more sources

Riemannian submersions From Almost Hermitian Manifolds [PDF]

open access: yesTaiwanese Journal of Mathematics, 2013
We survey main results of holomorphic submersions, anti-invariant submersions, slant submersions, semi-invariant submersions and semi-slant submersions defined on almost Hermitian manifolds. We also give an application of Riemannian submersions on redundant robotic chains obtained by Altafini and propose some open problems related to topics discussed ...
openaire   +3 more sources

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