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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 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

In this paper, we provide a systematic and constructive description of Vaisman structures on certain principal elliptic bundles over complex flag manifolds. From this description we explicitly classify homogeneous l.c.K. structures on…

Differential Geometry · Mathematics 2022-03-28 Eder M. Correa

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

We prove various classification results for homogeneous locally conformally symplectic manifolds. In particular, we show that a homogeneous locally conformally Kaehler manifold of a reductive group is of Vaisman type, if the normalizer of…

Differential Geometry · Mathematics 2016-01-15 Dmitri V. Alekseevsky , Vicente Cortes , 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

An LCK manifold with potential is a complex manifold with a Kahler potential on its cover, such that any deck transformation multiplies the Kahler potential by a constant multiplier. We prove that any homogeneous LCK manifold admits a…

Differential Geometry · Mathematics 2023-05-24 Liviu Ornea , Misha Verbitsky

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

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

A Hermitian structure on a manifold is called locally conformally K\"ahler (LCK) if it locally admits a conformal change which is K\"ahler. In this survey we review recent results of invariant LCK structures on solvmanifolds and present…

Differential Geometry · Mathematics 2020-04-06 Adrián Andrada , Marcos Origlia

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 Hopf manifold is a compact complex manifold of which the universal covering is C^n\{0}. In this note we show that any Hopf manifold admits a locally conformally Kaehler structure (shortly lcK structure), by constructing a complex analytic…

Differential Geometry · Mathematics 2023-06-16 Keizo Hasegawa

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

We study two kinds of transformation groups of a compact locally conformally Kahler (l.c.K.) manifold. First we study compact l.c.K. manifolds with parallel Lee form by means of the existence of a holomorphic l.c.K. flow. Next, we introduce…

Differential Geometry · Mathematics 2007-05-23 Y. Kamishima , L. Ornea

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

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 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

We prove that a compact lcK manifold with holomorphic Lee vector field is Vaisman provided that either the Lee field has constant norm or the metric is Gauduchon (i.e., the Lee field is divergence-free). We also give examples of compact lcK…

Differential Geometry · Mathematics 2019-01-08 Andrei Moroianu , Sergiu Moroianu , Liviu Ornea

We prove that the compact Kaehler manifolds with first Chern class nonnegative that admit holomorphic parabolic geometries are the flat bundles of rational homogeneous varieties over complex tori. We also prove that the compact Kaehler…

Differential Geometry · Mathematics 2019-11-12 Benjamin McKay
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