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相关论文: Special non-K\"ahler metrics -- old and new

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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 give a partial account of some problems concerning cohomological invariants and metric properties of complex non-K\"ahler manifolds.

微分几何 · 数学 2026-02-04 Daniele Angella , Nicoletta Tardini

We investigate degenerate special-Hermitian metrics on compact complex manifolds, in particular, degenerate K\"ahler and locally conformally K\"ahler metrics on special classes of non-K\"ahler manifolds.

微分几何 · 数学 2018-02-20 Daniele Angella , Adriano Tomassini

The property of admitting an astheno-K\"ahler metric is not stable under the action of small deformations of the complex structure of a compact complex manifold. In this paper, we prove necessary cohomological conditions for the existence…

微分几何 · 数学 2023-05-08 Tommaso Sferruzza

We present classical and recent results on K\"ahler-Einstein metrics on compact complex manifolds, focusing on existence, obstructions and relations to algebraic geometric notions of stability (K-stability). These are the notes for the SMI…

微分几何 · 数学 2018-02-20 Daniele Angella , Cristiano Spotti

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…

微分几何 · 数学 2016-08-04 Daniele Angella , Luis Ugarte

We provide families of compact astheno-K\"ahler nilmanifolds and we study the behaviour of the complex blowup of such manifolds. We prove that the existence of an astheno-K\"ahler metric satisfying an extra differential condition is not…

微分几何 · 数学 2022-06-15 Tommaso Sferruzza , Adriano Tomassini

This paper is concerned with the existence of constant scalar curvature Kaehler metrics on blow ups at finitely many points of compact manifolds which already carry constant scalar curvature Kaehler metrics. We also consider the…

微分几何 · 数学 2007-05-23 Claudio Arezzo , Frank Pacard

We study the interplay between the following types of special non-K\"ahler Hermitian metrics on compact complex manifolds: it locally conformally K\"ahler, $k$-Gauduchon, balanced and locally conformally balanced and prove that a locally…

微分几何 · 数学 2021-11-29 Liviu Ornea , Alexandra Otiman , Miron Stanciu

In this thesis, we study cohomological properties of non-K\"ahler manifolds. In particular, we are concerned in investigating the cohomology of compact (almost-)complex manifolds, and of manifolds endowed with special structures, e.g.,…

微分几何 · 数学 2013-02-05 Daniele Angella

Consider a compact K\"ahler manifold which either admits an extremal K\"ahler metric, or is a small deformation of such a manifold. We show that the blowup of the manifold at a point admits an extremal K\"ahler metric in K\"ahler classes…

微分几何 · 数学 2024-10-01 Ruadhaí Dervan , Lars Martin Sektnan

The paper is part of an attempt of understanding non-K\"ahler threefolds. We start by looking at compact complex non-K\"ahler threefolds with algebraic dimension two and admitting locally conformally K\"ahler metrics. Under certain…

微分几何 · 数学 2023-03-21 Daniele Angella , Maurizio Parton , Victor Vuletescu

On a compact complex manifold we study the behaviour of strong K\"ahler with torsion (strong KT) structures under small deformations of the complex structure and the problem of extension of a strong KT metric. In this context we obtain the…

微分几何 · 数学 2009-02-04 Anna Fino , Adriano Tomassini

We construct extremal metrics on the total space of certain destabilising test configurations for strictly semistable K\"ahler manifolds. This produces infinitely many new examples of manifolds admitting extremal K\"ahler metrics. It also…

微分几何 · 数学 2021-10-15 Lars Martin Sektnan , Cristiano Spotti

We propose an approach to the existence problem for locally conformally K\"ahler metrics on compact complex manifolds by introducing and studying a functional that is different according to whether the complex dimension of the manifold is…

微分几何 · 数学 2023-08-04 Dan Popovici , Erfan Soheil

Conditions for the existence of K\"ahler-Einstein metrics and central K\"ahler metrics [MS] along with examples, both old and new, are given on classes of Lorentzian $4$-manifolds with two distinguished vector fields. The results utilize…

微分几何 · 数学 2020-12-24 Amir Babak Aazami , Gideon Maschler

We study Hermitian geometrically formal metrics on compact complex manifolds, focusing on Dolbeault, Bott-Chern, and Aeppli cohomologies. We establish topological and cohomological obstructions to their existence and we provide a detailed…

微分几何 · 数学 2025-07-15 Tommaso Sferruzza , Adriano Tomassini

Let $X$ be a compact K\"ahler manifold and $S$ a subvariety of $X$ with higher co-dimension. The aim is to study complete constant scalar curvature K\"ahler metrics on non-compact K\"ahler manifold $X-S$ with Poincar\'e--Mok--Yau asymptotic…

微分几何 · 数学 2016-03-31 Jixiang Fu , Shing-Tung Yau , Wubin Zhou

A new construction is presented of scalar-flat Kaehler metrics on non-minimal ruled surfaces. The method is based on the resolution of singularities of orbifold ruled surfaces which are closely related to rank-2 parabolically stable…

微分几何 · 数学 2007-05-23 Yann Rollin , Michael A. Singer

We consider a compact K\"ahler manifold admitting a constant scalar curvature K\"ahler metric and with no nontrivial holomorphic vector fields. After blowing up the manifold at finitely many points, we prove the existence of constant scalar…

微分几何 · 数学 2026-05-28 Yueqing Feng
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