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相关论文: Holomorphic Parabolic Geometries and Calabi-Yau Ma…

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We classify the holomorphic parabolic geometries on compact complex manifolds of general type. We accomplish this by bounding the numerical dimension of any smooth projective variety in terms of geometric invariants of the flag variety…

微分几何 · 数学 2026-01-06 Benjamin McKay

We prove that if a Calabi--Yau manifold $M$ admits a holomorphic Cartan geometry, then $M$ is covered by a complex torus. This is done by establishing the Bogomolov inequality for semistable sheaves on compact K\"ahler manifolds. We also…

代数几何 · 数学 2010-09-30 Indranil Biswas , Benjamin McKay

We prove that the only Calabi--Yau projective manifolds which bear holomorphic Cartan geometries are precisely the abelian varieties. (Nous d\'emontrons que les seules vari\'et\'es projectives de Calabi--Yau qui poss\`edent des…

代数几何 · 数学 2010-09-29 Indranil Biswas , Benjamin McKay

Our aim here is to investigate the holomorphic geometric structures on compact complex manifolds which may not be K\"ahler. We prove that holomorphic geometric structures of affine type on compact Calabi-Yau manifolds with polystable…

微分几何 · 数学 2016-02-16 Indranil Biswas , Sorin Dumitrescu

We study local automorphisms of holomorphic Cartan geometries. This leads to classification results for compact complex manifolds admitting Cartan geometries. We prove that a compact Calabi-Yau manifold bearing a holomorphic Cartan geometry…

微分几何 · 数学 2009-03-10 Sorin Dumitrescu

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…

微分几何 · 数学 2019-11-12 Benjamin McKay

The goal of this paper is to develop the theory of Courant algebroids with integrable para-Hermitian vector bundle structures by invoking the theory of Lie bialgebroids. We consider the case where the underlying manifold has an almost…

微分几何 · 数学 2025-02-04 Aidan Patterson

We prove that any holomorphic vector bundle admitting a holomorphic connection, over a compact K\"ahler Calabi-Yau manifold, also admits a flat holomorphic connection. This addresses a particular case of a question asked by Atiyah and…

微分几何 · 数学 2023-12-05 Indranil Biswas , Sorin Dumitrescu

We study complete, simply-connected manifolds with special holonomy that are toric with respect to their multi-moment maps. We consider the cases where there is a connected non-Abelian symmetry group containing the torus. For…

微分几何 · 数学 2024-07-08 Thomas Bruun Madsen , Andrew Swann

We explain how to relate the problem of finding a mirror manifold for a Calabi-Yau manifold to the problem of characterizing the rational homotopy types of closed K\"{a}hler manifolds.

微分几何 · 数学 2007-05-23 Jian Zhou

We classify holomorphic Cartan geometries on every compact complex curve, and on every compact complex surface which contains a rational curve.

微分几何 · 数学 2019-11-12 Benjamin McKay

We compute the integral homology (including torsion), the topological K-theory, and the Hodge structure on cohomology of Calabi-Yau threefold hypersurfaces and complete intersections in Gorenstein toric Fano varieties. The methods are…

代数几何 · 数学 2014-11-11 Charles F. Doran , John W. Morgan

We find sufficient conditions for a principal toric bundle over compact K\"ahler manifolds to admit Calabi-Yau connections with torsion. With the aids of a topological classification, we construct such geometry on $n(S^2\times…

微分几何 · 数学 2007-05-23 D. Grantcharov , G. Grantcharov , Y. S. Poon

These are introductory lecture notes on complex geometry, Calabi-Yau manifolds and toric geometry. We first define basic concepts of complex and Kahler geometry. We then proceed with an analysis of various definitions of Calabi-Yau…

高能物理 - 理论 · 物理学 2007-05-23 Vincent Bouchard

We extend the notion of (branched) holomorphic Cartan geometry on a complex manifold to the context of Sasakian manifolds. Branched holomorphic Cartan geometries on Sasakian Calabi-Yau manifolds are investigated.

微分几何 · 数学 2018-12-07 Indranil Biswas , Sorin Dumitrescu , Georg Schumacher

Any Batalin-Vilkovisky algebra with a homotopy trivialization of the BV-operator gives rise to a hypercommutative algebra structure at the cochain level which, in general, contains more homotopical information than the hypercommutative…

代数拓扑 · 数学 2026-05-26 Joana Cirici , Geoffroy Horel

In this paper, we study the convergence of Calabi-Yau manifolds under K\"{a}hler degeneration to orbifold singularities and complex degeneration to canonical singularities (including the conifold singularities), and the collapsing of a…

微分几何 · 数学 2009-05-22 Wei-Dong Ruan , Yuguang Zhang

Generalized Calabi-Gray manifolds are non-K\"ahler complex manifolds with very explicit geometry yet not being homogeneous. In this note, we demonstrate that how generalized Calabi-Gray manifolds can be used to answer some questions in…

微分几何 · 数学 2023-07-26 Teng Fei

We study holomorphic GL(2) and SL(2) geometries on compact complex manifolds. We show that a compact K\"ahler manifold of complex even dimension higher than two admitting a holomorphic GL(2)-geometry is covered by a compact complex torus.…

微分几何 · 数学 2020-08-12 Indranil Biswas , Sorin Dumitrescu

In this paper we prove the existence and uniqueness of the form-type Calabi-Yau equation on K\"ahler manifolds of nonnegative orthogonal bisectional curvature.

微分几何 · 数学 2011-03-16 Jixiang Fu , Zhizhang Wang , Damin Wu
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