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相关论文: Locally conformally K\"ahler manifolds. A selectio…

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We consider several transformation groups of a locally conformally K\"ahler manifold and discuss their inter-relations. Among other results, we prove that all conformal vector fields on a compact Vaisman manifold which is neither locally…

微分几何 · 数学 2019-01-08 Andrei Moroianu , Liviu Ornea

We give an up-to-date overview of geometric and topological properties of cosymplectic and coKaehler manifolds. We also mention some of their applications to time-dependent mechanics.

微分几何 · 数学 2013-11-22 Beniamino Cappelletti-Montano , Antonio De Nicola , Ivan Yudin

The existence of orthogonal local coordinates is a generalization of the manifold being conformally flat. It is always possible to construct orthogonal coordinates on 2-manifolds, using geometric normal coordinates or isothermal…

微分几何 · 数学 2023-05-10 David L. Johnson

The object of the present paper is to study some properties of para-K$\"{a}$hler manifold whose metric is conformal Einstein soliton. We have studied some certain curvature properties of para-K$\"{a}$hler manifold admitting conformal…

微分几何 · 数学 2020-05-13 Soumendu Roy , Santu Dey , Arindam Bhattacharyya

$\,\,\,\,\,\,$In this paper, we prove that the nonautonomous Schr\"{o}dinger flow from a compact Riemannian manifold into a K\"ahler manifold admits a local solution. Under some certain conditions, the solution is unique and has higher…

微分几何 · 数学 2018-02-02 Zonglin Jia , Youde Wang

We give an account of old and new results concerning many types of non-K\"ahler metrics, with focus on the problem of their coexistence on compact complex manifolds, and their behaviour at deformations and blow-up. We also describe a…

微分几何 · 数学 2025-05-06 Liviu Ornea , Miron Stanciu

We obtain structure results for locally conformally symplectic Lie algebras. We classify locally conformally symplectic structures on four-dimensional Lie algebras and construct locally conformally symplectic structures on compact quotients…

微分几何 · 数学 2023-06-13 Daniele Angella , Giovanni Bazzoni , Maurizio Parton

A systematic study of the contributions at infinity for the cohomology of variations of polarized Hodge structures over quasicompact K\"ahler manifolds. Several isomorphisms between different cohomologies given.

代数几何 · 数学 2007-05-23 Juergen Jost , Yihu Yang , Kang Zuo

We associate to the resolved conifold an affine special K\"{a}hler (ASK) manifold of complex dimension 1, and an instanton corrected hyperk\"{a}hler (HK) manifold of complex dimension 2. We describe these geometries explicitly, and show…

微分几何 · 数学 2022-07-13 Murad Alim , Arpan Saha , Iván Tulli

We review the properties of the Morse-Novikov cohomology and compute it for all known compact complex surfaces with locally conformally K\"ahler metrics. We present explicit computations for the Inoue surfaces $\mathcal{S}^0$,…

微分几何 · 数学 2016-10-18 Alexandra Otiman

For Kaehler manifolds we explicitly determine the solution to the conformal Killing form equation in middle degree. In particular, we complete the classification of conformal Killing forms on compact Kaehler manifolds. We give the first…

微分几何 · 数学 2023-05-15 Paul-Andi Nagy , Uwe Semmelmann

The requirement that a (non-Einstein) K\"ahler metric in any given complex dimension $m>2$ be almost-everywhere conformally Einstein turns out to be much more restrictive, even locally, than in the case of complex surfaces. The local…

微分几何 · 数学 2007-05-23 A. Derdzinski , G. Maschler

In this paper we show as main results two structure theorems of a compact homogeneous locally conformally Kaehler (or shortly l.c.K.) manifold, a holomorphic structure theorem asserting that it has a structure of holomorphic principal fiber…

复变函数 · 数学 2016-01-19 Keizo Hasegawa , Yoshinobu Kamishima

The local classification of conformally flat Lorentzian manifolds with special holonomy groups is obtained. The corresponding local metrics are certain extensions of Riemannian spaces of constant sectional curvature to Walker metrics.

微分几何 · 数学 2018-08-21 Anton S. Galaev

We point out how some recent developments in the theory of constant scalar curvature K\"ahler metrics can be used to clarify the existence issue for such metrics in the special case of geometrically ruled complex surfaces.

微分几何 · 数学 2007-05-23 Vestislav Apostolov , Christina W. Tønnesen-Friedman

The main goal of this article is to relate asymptotic geometric properties on a tower of coverings of a non-compact K\"ahler manifold of finite volume with reasonable geometric assumptions to its universal covering. Applicable examples…

代数几何 · 数学 2012-04-27 Sai-Kee Yeung

In this article, we study harmonic symmetries on the compact locally conformally K\"{a}hler manifold $M$ of $dim_{\mathbb{C}}=n$. The space of harmonic symmetries is a subspace of harmonic differential forms which defined by the kernel of a…

微分几何 · 数学 2022-02-01 Teng Huang

We show that for a certain class of solvable Lie groups, if they admit a left-invariant non-Vaisman locally conformally K\"{a}hler metric and a lattice, they must arise from the construction of Oeljeklaus-Toma manifolds. This result…

微分几何 · 数学 2025-02-19 Shuho Kanda

We give the parallelism between locally conformal symplectic manifolds and contact manifolds. We also give the generalization of exact contact manifolds.

微分几何 · 数学 2015-01-21 Eugène Okassa

We present some examples of locally conformal symplectic structures of the first kind on compact nilmanifolds which do not admit Vaisman metrics. One of these examples does not admit locally conformal K\"ahler metrics and all the structures…

微分几何 · 数学 2019-02-14 Giovanni Bazzoni , Juan Carlos Marrero