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相关论文: A report on locally conformally K\"ahler manifolds

200 篇论文

We give global restrictions on the possible boundaries of compact, orientable, locally conformally flat manifolds of dimension $4k$ in terms of integrality of eta invariants.

微分几何 · 数学 2015-06-22 Sergiu Moroianu

In this article, we study Conformal pointwise-slant Riemannian maps (\textit{CPSRM}) from or to K\"{a}hler manifolds to or from Riemannian manifolds. To check the existence of such maps, we provide some non-trivial examples. We derive some…

微分几何 · 数学 2023-08-31 A. Zaidi , G. Shanker , J. Yadav

This is an expository paper, which provides a first approach to nearly Kenmotsu manifolds. The purpose of this paper is to focus on nearly Kenmotsu manifolds and get some new results from it. We prove that for a nearly Kenmotsu manifold is…

微分几何 · 数学 2015-05-21 Irem Kupeli Erken , Piotr Dacko , Cengizhan Murathan

The main result is that for a connected hyperbolic complete K\"ahler manifold with bounded geometry of order two and exactly one end, either the first compactly supported cohomology with values in the structure sheaf vanishes or the…

复变函数 · 数学 2015-06-16 Terrence Napier , Mohan Ramachandran

We investigate compact complex manifolds endowed with SKT or balanced metrics. In each case we define a new functional whose critical points are proved to be precisely the K\"ahler metrics, if any, on the manifold. As general manifolds of…

微分几何 · 数学 2023-05-16 Sławomir Dinew , Dan Popovici

We prove that the one-loop deformation of any quaternionic K\"ahler manifold in the class of c-map spaces is locally inhomogeneous. As a corollary, we obtain that the full isometry group of the one-loop deformation of any homogeneous c-map…

微分几何 · 数学 2025-03-26 Vicente Cortés , Alejandro Gil-García , Arpan Saha

We study K\"ahler manifolds that are (weak) relatives, that is, K\"ahler manifolds which share a (locally isometric) submanifold. In particular, we prove that if two K\"ahler manifolds are weak relatives and one of them is projective, then…

微分几何 · 数学 2026-03-05 Giovanni Placini

It is shown that an HKT-space with closed parallel potential 1-form has $D(2,1;-1)$-symmetry. Every locally conformally hyperk\"ahler manifold generates this type of geometry. The HKT-spaces with closed parallel potential 1-form arising in…

微分几何 · 数学 2009-11-07 Liviu Ornea , Yat Sun Poon , Andrew Swann

We study the local Killing Lie algebra of meromorphic almost rigid geometric structures on complex manifolds. This leads to classification results for compact complex manifolds bearing holomorphic rigid geometric structures.

微分几何 · 数学 2008-05-30 Sorin Dumitrescu

We prove that each irreducible component of the cohomology jump loci of rank one local systems over a compact K\"ahler manifold contains at least one torsion point. This generalizes a theorem of Simpson for smooth complex projective…

代数几何 · 数学 2015-12-01 Botong Wang

It is shown that the geometry of locally homogeneous multisymplectic manifolds (that is, smooth manifolds equipped with a closed nondegenerate form of degree > 1, which is locally homogeneous of degree k with respect to a local Euler field)…

微分几何 · 数学 2016-04-11 A. Echeverría-Enríquez , A. Ibort , M. C. Muñoz-Lecanda , N. Román-Roy

We continue the program of Chinea, De Leon and Marrero who studied the topology of cosymplectic manifolds. We study 3-cosymplectic manifolds which are the closest odd-dimensional analogue of hyper-Kaehler structures. We show that there is…

微分几何 · 数学 2013-02-27 Beniamino Cappelletti Montano , Antonio De Nicola , Ivan Yudin

Nearly K\"ahler manifolds are the Riemannian 6-manifolds admitting real Killing spinors. Equivalently, the Riemannian cone over a nearly K\"ahler manifold has holonomy contained in G2. In this paper we study the deformation theory of nearly…

微分几何 · 数学 2017-04-28 Lorenzo Foscolo

Transcendental holomorphic Morse inequalities aim at characterizing the positivity of transcendental cohomology classes of type $(1,1)$. In this paper, we prove a weak version of Demailly's conjecture on transcendental Morse inequalities on…

复变函数 · 数学 2014-08-12 Jian Xiao

This article describes some geometric invariants and conformal anomalies for conformally compact Einstein manifolds and their minimal submanifolds which have recently been discovered via the Anti-de Sitter/Conformal Field Theory…

微分几何 · 数学 2007-05-23 C. Robin Graham

In this short note, we prove the existence of constant scalar curvature K\"ahler metrics on compact K\"ahler manifolds with semi-ample canonical bundles.

微分几何 · 数学 2018-05-18 Wangjian Jian , Yalong Shi , Jian Song

This paper investigates the generalizations and applications of weakly $p$-K\"ahler hyperbolic manifolds.

微分几何 · 数学 2024-11-18 Changpeng Pan

We give an elementary introduction to hyperk\"ahler manifolds, survey some of their interesting properties and some open problems.

代数几何 · 数学 2021-12-07 Elham Izadi , Samir Canning , Yajnaseni Dutta , David Stapleton

This work deals with relations between a bounded cohomological invariant and the geometry of Hermitian symmetric spaces of noncompact type. The invariant, obtained from the K\"ahler class, is used to define and characterize a special class…

微分几何 · 数学 2007-05-23 Anna Wienhard

The subject of this paper is six-dimensional nearly (para-)K\"ahler geometry with pseudo-Riemannian metrics. Firstly, we derive the analogue of the well-known exterior differential system characterising a nearly K\"ahler manifold and prove…

微分几何 · 数学 2009-12-18 Lars Schäfer , Fabian Schulte-Hengesbach
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