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Related papers: Virtual global generation in higher dimensions

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We consider global generation of sheaves of coinvariants on the moduli space of curves given by simple modules over certain vertex operator algebras, extending results for affine VOAs at integrable levels on stable pointed rational curves.…

Algebraic Geometry · Mathematics 2022-08-10 Chiara Damiolini , Angela Gibney

Let $f:X\rightarrow Y$ be a generically smooth morphism between irreducible smooth projective curves over an algebraically closed field of arbitrary characteristic. We prove that the vector bundle $((f_*{\mathcal O}_X)/{\mathcal O}_Y)^*$ is…

Algebraic Geometry · Mathematics 2024-11-20 Indranil Biswas , Manish Kumar , A. J. Parameswaran

We classify globally generated vector bundles on $\mathbb{P}^1 \times \mathbb{P}^2$ with small first Chern class, i.e. $c_1= (a,b)$, $a+b \leq 3$. Our main method is to investigate the associated smooth curves to globally generated vector…

Algebraic Geometry · Mathematics 2015-01-23 Edoardo Ballico , Sukmoon Huh , Francesco Malaspina

We give a complete classification of globally generated vector bundles of rank 3 on a smooth quadric threefold with $c_1\leq 2$ and extend the result to arbitrary higher rank case. We also investigate the existence of globally generated…

Algebraic Geometry · Mathematics 2012-12-14 Edoardo Ballico , Sukmoon Huh , Francesco Malaspina

It is interesting to know, how far we can generalize the notion of a group-valued cocycle keeping the property to determine a bundle. We find a generalization for pairs of cocycles and show how these generalized pairs of cocycles can still…

K-Theory and Homology · Mathematics 2013-12-03 Vladimir Manuilov , Chao You

Extending a previous result of the authors, we classify globally generated vector bundles on projective spaces with first Chern class equal to three.

Algebraic Geometry · Mathematics 2013-07-30 José Carlos Sierra , Luca Ugaglia

We study effective global generation properties of projectivizations of curve semistable vector bundles over curves and abelian varieties.

Algebraic Geometry · Mathematics 2024-05-21 Jiaming Chen , Alex Küronya , Yusuf Mustopa , Jakob Stix

We provide a classification of globally generated vector bundles with $c_1 = 5$ on the projective 3-space. The classification is complete (except for one case) but not as detailed as the corresponding classification in the case $c_1 = 4$…

Algebraic Geometry · Mathematics 2018-05-30 Cristian Anghel , Iustin Coanda , Nicolae Manolache

Graded vector bundles over a given $\mathbb{Z}$-graded manifold can be defined in three different ways: certain sheaves of graded modules over the structure sheaf of the base graded manifold, finitely generated projective graded modules…

Differential Geometry · Mathematics 2025-08-28 Rudolf Smolka , Jan Vysoky

In this paper we approach the study of generalized theta linear series on moduli of vector bundles on curves via vector bundle techniques on abelian varieties. We study what are called the Verlinde bundles in order to obtain information…

Algebraic Geometry · Mathematics 2007-05-23 Mihnea Popa

We obtain a sharp bound on the degree of a globally generated vector bundle over a reduced irreducible projective variety defined over an algebraically closed field of characteristic zero. As an application, we obtain a Del Pezzo-Bertini…

Algebraic Geometry · Mathematics 2008-05-28 José Carlos Sierra

It is shown that multi-dimensional generalization of the vector product is only possible in seven dimensional space.

Rings and Algebras · Mathematics 2008-11-26 Z. K. Silagadze

We give the classification of globally generated vector bundles of rank $2$ on a smooth quadric surface with $c_1\le (2,2)$ in terms of the indices of the bundles, and extend the result to arbitrary higher rank case. We also investigate…

Algebraic Geometry · Mathematics 2014-06-16 Edoardo Ballico , Sukmoon Huh , Francesco Malaspina

Although the vectorization operation is known and well-defined, it is only defined for 2-D matrices, and its inverse isn't as well-popularized. This work proposes to generalize the vectorization to higher dimensions, and define…

Numerical Analysis · Mathematics 2023-11-08 Vitor Curtarelli

Classification theory and the study of projective varieties which are covered by rational curves of minimal degrees naturally leads to the study of families of singular rational curves. Since families of arbitrarily singular curves are hard…

Algebraic Geometry · Mathematics 2007-05-23 Stefan Kebekus

Let $X$ be a smooth projective variety over an algebraically closed field $\mathbb{K}$ with arbitrary characteristic. Suppose $L$ is an ample and globally generated line bundle. By Castelnuovo--Mumford regularity, we show that $K_X \otimes…

Algebraic Geometry · Mathematics 2018-04-10 Xiaoyu Su , Xiaokui Yang

The purpose of this note is to extend some classical results on quasi-projective schemes to the setting of derived algebraic geometry. Namely, we want to show that any vector bundle on a derived scheme admitting an ample line bundle can be…

Algebraic Geometry · Mathematics 2021-11-09 Toni Annala

We classify globally generated vector bundles on $\mathbf{P}^1 \times \mathbf{P}^1 \times \mathbf{P}^1$ with small first Chern class, i.e. $c_1= (a_1, a_2, a_3)$, $a_i \le 2$. Our main method is to investigate the associated smooth curves…

Algebraic Geometry · Mathematics 2015-02-24 Edoardo Ballico , Sukmoon Huh , Francesco Malaspina

Two-dimensional array-based datasets are pervasive in a variety of domains. Current approaches for generative modeling have typically been limited to conventional image datasets and performed in the pixel domain which do not explicitly…

Machine Learning · Computer Science 2021-07-12 Hoda Shajari , Jaemoon Lee , Sanjay Ranka , Anand Rangarajan

The purpose of this article is to present the theory of higher order connections on vector bundles from a viewpoint inspired by projective differential geometry.

Differential Geometry · Mathematics 2009-08-12 Michael G. Eastwood
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