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We show various vanishing theorems for the cohomology groups of compact hermitian manifolds for which the Bismut connection has (restricted) holonomy contained in SU(n) and classify all such manifolds of dimension four. In this way we…

Differential Geometry · Mathematics 2009-10-09 S. Ivanov , G. Papadopoulos

The Kobayashi pseudometric on a complex manifold is the maximal pseudometric such that any holomorphic map from the Poincar\'e disk to the manifold is distance-decreasing. Kobayashi has conjectured that this pseudometric vanishes on…

Algebraic Geometry · Mathematics 2021-04-02 Ljudmila Kamenova , Steven Lu , Misha Verbitsky

In this paper, we study relations between positivity of the curvature and the asymptotic behavior of the higher cohomology group for tensor powers of a holomorphic line bundle. The Andreotti-Grauert vanishing theorem asserts that partial…

Complex Variables · Mathematics 2013-01-17 Shin-ichi Matsumura

We show that the compactly supported cohomology of Shimura varieties of Hodge type of infinite $\Gamma_1(p^\infty)$-level (defined with respect to a Borel subgroup) vanishes above the middle degree, under the assumption that the group of…

Number Theory · Mathematics 2025-01-17 Ana Caraiani , Daniel R. Gulotta , Christian Johansson

We prove the relative Grauert-Riemenschneider vanishing, Kawamata-Viehweg vanishing, and Koll\'ar injectivity theorems for proper morphisms of schemes of equal characteristic zero, solving conjectures of Boutot and Kawakita. Our proof uses…

Algebraic Geometry · Mathematics 2024-12-24 Takumi Murayama

We use a sheaf-theoretic approach to obtain a blow-up formula for Dolbeault cohomology groups with values in the holomorphic vector bundle over a compact complex manifold. As applications, we present several positive (or negative) examples…

Algebraic Geometry · Mathematics 2018-12-07 Sheng Rao , Song Yang , Xiangdong Yang

We study different notions of slope of a vector bundle over a smooth projective curve with respect to ampleness and affineness in order to apply this to tight closure problems. This method gives new degree estimates from above and from…

Algebraic Geometry · Mathematics 2007-05-23 Holger Brenner

We consider regular polystable Higgs pairs $(E, \phi)$ on compact complex manifolds. We show that a non-trivial Higgs field $\phi \in H^0 ({\rm End} (E) \otimes K_S)$ restricts the Ricci curvature of the manifold, generalising previous…

High Energy Physics - Theory · Physics 2020-12-02 Fernando Marchesano , Ruxandra Moraru , Raffaele Savelli

We first present a Skoda type division theorem for holomorphic sections of line bundles on a projective variety which is essentially the most general, compared to previous ones. It is derived from Varolin's theorem as a corollary. Then we…

Algebraic Geometry · Mathematics 2014-08-29 Dano Kim

In this paper, we study the Nakano-positivity and dual-Nakano-positivity of certain adjoint vector bundles associated to ample vector bundles. As applications, we get new vanishing theorems about ample vector bundles. For example, we prove…

Differential Geometry · Mathematics 2011-03-31 Kefeng Liu , Xiaofeng Sun , Xiaokui Yang

The cohomology algebra of the canonical bundle of a compact K\"ahler manifold is naturally viewed as a module over an exterior algebra. We use the Bernstein-Gel'fand-Gel'fand correspondence, together with Generic Vanishing theory, in order…

Algebraic Geometry · Mathematics 2010-07-19 Robert Lazarsfeld , Mihnea Popa

For a compact Lie group G we define a regularized version of the Dolbeault cohomology of a G-equivariant holomorphic vector bundles over non-compact Kahler manifolds. The new cohomology is infinite-dimensional, but as a representation of G…

Differential Geometry · Mathematics 2013-02-26 Maxim Braverman

We derive sufficient conditions for the vanishing of plurigenera, $p_m(J), m>0$, on compact (l|k)-strong, $\omega^l\wedge \partial\bar\partial \omega^k=0$, Kaehler manifolds with torsion. In particular, we show that the plurigenera of…

Differential Geometry · Mathematics 2013-10-16 Stefan Ivanov , George Papadopoulos

Chow's Theorem and GAGA are renowned results demonstrating the algebraic nature of projective manifolds and, more broadly, projective analytic varieties. However, determining if a particular manifold is projective is not, generally, a…

Algebraic Geometry · Mathematics 2025-01-14 Skyler Marks

This article generalises to K\"ahler orbifolds general results on uniformisation of compact K\"ahler manifolds such as the Shafarevich conjecture for linear fundamental groups.

Algebraic Geometry · Mathematics 2013-02-21 Philippe Eyssidieux

Let $k$ be a finite field, a $p$-adic field or a number field. Let $K$ be a finite extension of the Laurent series field in $m$ variables $k((x_1,...,x_m))$ or, more generally, a finite extension of the field of rational functions…

Algebraic Geometry · Mathematics 2018-06-08 Diego Izquierdo

We prove vanishing results for the coherent cohomology of the good reduction modulo $p$ of the Siegel variety with coefficients in some automorphic bundles. We show that for an automorphic bundle with highest weight $\lambda$ near the walls…

Algebraic Geometry · Mathematics 2025-10-14 Thibault Alexandre

Let (M,I,J,K) be a hyperkahler manifold of real dimension 4n, and L a non-trivial holomorphic line bundle on (M,I). Using the quaternionic Dolbeault complex, we prove the following vanishing theorem for holomorphic cohomology of L. If the…

Algebraic Geometry · Mathematics 2008-03-14 Misha Verbitsky

A recent theorem of Diverio--Trapani and Wu--Yau asserts that a compact K\"ahler manifold with a K\"ahler metric of quasi-negative holomorphic sectional curvature is projective and canonically polarized. This confirms a long-standing…

Differential Geometry · Mathematics 2023-05-04 Kyle Broder , Kai Tang

We present a generalization of Takegoshi's relative version of the Grauert-Riemenschneider vanishing theorem. Under some natural assumptions, we extend Takegoshi's vanishing theorem to the case of Nakano semi-positive coherent analytic…

Complex Variables · Mathematics 2016-08-11 Martin Sera