Results 1 to 10 of about 37 (37)

Deformations of astheno-Kähler metrics

open access: yesComplex Manifolds, 2023
The property of admitting an astheno-Kähler metric is not stable under the action of small deformations of the complex structure of a compact complex manifold.
Sferruzza Tommaso
doaj   +1 more source

Deformations of Strong Kähler with torsion metrics

open access: yesComplex Manifolds, 2021
Existence of strong Kähler with torsion metrics, shortly SKT metrics, on complex manifolds has been shown to be unstable under small deformations.
Piovani Riccardo, Sferruzza Tommaso
doaj   +1 more source

Second Chern-Einstein metrics on four-dimensional almost-Hermitian manifolds

open access: yesComplex Manifolds, 2023
We study four-dimensional second Chern-Einstein almost-Hermitian manifolds. In the compact case, we observe that under a certain hypothesis, the Riemannian dual of the Lee form is a Killing vector field.
Barbaro Giuseppe, Lejmi Mehdi
doaj   +1 more source

Pseudo-holomorphic curves: A very quick overview

open access: yesComplex Manifolds, 2020
This is a review article on pseudo-holomorphic curves which attempts at touching all the main analytical results. The goal is to make a user friendly introduction which is accessible to those without an analytical background.
Oliveira Gonçalo
doaj   +1 more source

Locally conformally Kähler structures on four-dimensional solvable Lie algebras

open access: yesComplex Manifolds, 2019
We classify and investigate locally conformally Kähler structures on four-dimensional solvable Lie algebras up to linear equivalence. As an application we can produce many examples in higher dimension, here including lcK structures on Oeljeklaus-Toma ...
Angella Daniele, Origlia Marcos
doaj   +1 more source

Locally conformally Kähler solvmanifolds: a survey

open access: yesComplex Manifolds, 2019
A Hermitian structure on a manifold is called locally conformally Kähler (LCK) if it locally admits a conformal change which is Kähler. In this survey we review recent results of invariant LCK structures on solvmanifolds and present original results ...
Andrada A., Origlia M.
doaj   +1 more source

Laplace operators on holomorphic Lie algebroids

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2018
The paper introduces Laplace-type operators for functions defined on the tangent space of a Finsler Lie algebroid, using a volume form on the prolongation of the algebroid.
Ionescu Alexandru
doaj   +1 more source

Inequalities on the Bochner curvature tensor

open access: yesComplex Manifolds
On a compact locally conformal Kähler manifold (which is also Gauduchon) satisfying an Einstein-type condition, an inequality between the integrations of Chern forms and the Bochner curvature tensor is proved.
Yang Jieming
doaj   +1 more source

Hermitian Manifolds of Pointwise Constant Antiholomorphic Sectional Curvatures [PDF]

open access: yes, 2007
2000 Mathematics Subject Classification: Primary 53B35, Secondary 53C50.In dimension greater than four, we prove that if a Hermitian non-Kaehler manifold is of pointwise constant antiholomorphic sectional curvatures, then it is of constant sectional ...
Ganchev, Georgi, Kassabov, Ognian
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© Hindawi Publishing Corp. SOME SUBMERSIONS OF CR-HYPERSURFACES OF KAEHLER-EINSTEIN MANIFOLD [PDF]

open access: yes, 2002
The Riemannian submersions of a CR-hypersurface M of a Kaehler-Einstein man-ifold M ̃ are studied. If M is an extrinsic CR-hypersurface of M ̃ , then it is shown that the base space of the submersion is also a Kaehler-Einstein manifold.
Vittorio Mangione
core  

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