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A locally conformally K\"ahler (LCK) manifold is a complex manifold whose universal cover is K\"ahler with monodromy group acting on the universal cover by holomorphic homotheties. A Vaisman manifold $M$ is a compact non-K\"ahler LCK…

Algebraic Geometry · Mathematics 2017-01-27 Aleksei Golota

A locally conformally K\"ahler (LCK) manifold is a complex manifold covered by a K\"ahler manifold, with the covering group acting by homotheties. We show that if such a compact manifold X admits a holomorphic submersion with positive…

Differential Geometry · Mathematics 2020-07-30 Liviu Ornea , Maurizio Parton , Victor Vuletescu

A locally conformally K\"ahler (LCK) manifold $M$ is one which is covered by a K\"ahler manifold $\tilde M$ with the deck transform group acting conformally on $\tilde M$. If $M$ admits a holomorphic flow, acting on $\tilde M$ conformally,…

Algebraic Geometry · Mathematics 2010-07-09 Liviu Ornea , Misha Verbitsky

A locally conformally Kahler (LCK) manifold is a complex manifold admitting a Kahler covering M, such that its monodromy acts on this covering by homotheties. A compact LCK manifold is called LCK with potential if M admits an authomorphic…

Differential Geometry · Mathematics 2016-01-28 Liviu Ornea , Misha Verbitsky

A locally conformally K\"ahler (lcK) manifold is a complex manifold $(M,J)$ together with a Hermitian metric $g$ which is conformal to a K\"ahler metric in the neighbourhood of each point. In this paper we obtain three classification…

Differential Geometry · Mathematics 2021-06-15 Farid Madani , Andrei Moroianu , Mihaela Pilca

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…

Complex Variables · Mathematics 2016-01-19 Keizo Hasegawa , Yoshinobu Kamishima

We prove that any compact homogeneous locally conformally K\"ahler manifold has parallel Lee form.

Differential Geometry · Mathematics 2015-06-16 Paul Gauduchon , Andrei Moroianu , Liviu Ornea

We characterize compact locally conformally K\"ahler (l.c.K.) manifolds under the assumption of a purely conformal, holomorphic circle action. As an application, we determine the structure of the compact l.c.K. manifolds with parallel Lee…

Differential Geometry · Mathematics 2007-05-23 Yoshinobu Kamishima , Liviu Ornea

We will discuss in this paper homogeneous locally conformally Keahler (or shortly homogeneous l.c.K.) manifolds and locally homogeneous l.c.K. manifolds from various aspects of study in the field of l.c.K. geometry. We will provide a survey…

Differential Geometry · Mathematics 2016-01-19 Keizo Hasegawa , Yoshinobu Kamishima

A locally conformally K\"ahler (LCK) manifold is a complex manifold $M$ which has a K\"ahler structure on its cover, such that the deck transform group acts on it by homotheties. Assume that the K\"ahler form is exact on the minimal…

Differential Geometry · Mathematics 2024-05-24 Liviu Ornea , Misha Verbitsky

We classify and investigate locally conformally K\"ahler 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…

Differential Geometry · Mathematics 2019-12-23 Daniele Angella , Marcos Origlia

A locally conformally Kahler (LCK) manifold is a complex manifold with a Kahler structure on its covering and the deck transform group acting on it by holomorphic homotheties. One could think of an LCK manifold as of a complex manifold with…

Algebraic Geometry · Mathematics 2018-02-13 Liviu Ornea , Misha Verbitsky , Victor Vuletescu

A locally conformally Kahler (LCK) manifold is a manifold which is covered by a Kahler manifold, with the deck transform group acting by homotheties. We show that the blow-up of a compact LCK manifold along a complex submanifold admits an…

Algebraic Geometry · Mathematics 2013-10-07 Liviu Ornea , Misha Verbitsky , Victor Vuletescu

A locally conformally Kahler (LCK) manifold is a complex manifold admitting a Kahler covering, with the monodromy acting on this covering by homotheties. We define three cohomology invariants, the Lee class, the Morse-Novikov class, and the…

Differential Geometry · Mathematics 2015-05-13 Liviu Ornea , Misha Verbitsky

Vaisman's theorem for locally conformally K\"ahler (lcK) compact manifolds states that any lcK metric on a compact complex manifold which admits a K\"ahler metric is, in fact, globally conformally K\"ahler (gcK). In this paper, we extend…

Differential Geometry · Mathematics 2022-06-01 Ovidiu Preda , Miron Stanciu

We study complex non-K\"ahler manifolds with Hermitian metrics being locally conformal to metrics with special cohomological properties. In particular, we provide examples where the existence of locally conformal holomorphic-tamed…

Differential Geometry · Mathematics 2016-08-04 Daniele Angella , Luis Ugarte

In this article we develop a new approach to the problem of the stability of locally conformally K\"ahler structures (l.c.k structures) under small deformations of complex structures and deformations of flat line bundles. We show that under…

Differential Geometry · Mathematics 2015-01-22 Ryushi Goto

We give a complete description of all locally conformally K\"ahler structures with holomorphic Lee vector field on a compact complex manifold of Vaisman type. This provides in particular examples of such structures whose Lee vector field is…

Differential Geometry · Mathematics 2023-05-02 Farid Madani , Andrei Moroianu , Mihaela Pilca

A locally conformally Kaehler (l.c.K.) manifold is a complex manifold admitting a Kaehler covering $\tilde M$, with each deck transformation acting by Kaehler homotheties. A compact l.c.K. manifold is Vaisman if it admits a holomorphic flow…

Differential Geometry · Mathematics 2019-09-02 Liviu Ornea , Misha Verbitsky

A Hermitian metric on a complex manifold is called SKT (strong K\"ahler with torsion) if the Bismut torsion $3$-form $H$ is closed. As the conformal generalization of the SKT condition, we introduce a new type of Hermitian structure, called…

Differential Geometry · Mathematics 2022-11-09 Bachir Djebbar , Ana Cristina Ferreira , Anna Fino , Nourhane Zineb Larbi Youcef
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