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In this paper, we investigate the existence of Ulrich bundles on a smooth complete intersection of two $4$-dimensional quadrics in $\mathbb P^5$ by two completely different methods. First, we find good ACM curves and use Serre…

Algebraic Geometry · Mathematics 2017-04-12 Yonghwa Cho , Yeongrak Kim , Kyoung-Seog Lee

This work provides a curve-based approach to Ulrich bundles on surfaces, establishing a correspondence that characterizes their existence, with a focus on applications to surfaces in $\mathbb{P}^3$.

Algebraic Geometry · Mathematics 2025-10-16 Sofia Bordoni

In this short note, we study the existence problem for Ulrich bundles on ruled surfaces, focusing our attention on the smallest possible rank. We show that existence of Ulrich line bundles occurs if and only if the coefficient $\alpha$ of…

Algebraic Geometry · Mathematics 2024-01-17 Marian Aprodu , Laura Costa , Rosa Maria Miro-Roig

We prove the existence of Ulrich bundles on cyclic coverings of $\mathbb{P}^n$ of arbitrary degree $d$. Given a relatively Ulrich bundle on a complete intersection subvariety, we construct a relatively Ulrich bundle on the ambient variety.…

Algebraic Geometry · Mathematics 2025-06-17 A. J. Parameswaran , Jagadish Pine

Consider a smooth complex surface $X$ which is a double cover of the projective plane $\mathbb{P}^2$ branched along a smooth curve of degree $2s$. In this article, we study the geometric conditions which are equivalent to the existence of…

Algebraic Geometry · Mathematics 2022-01-24 A. J. Parameswaran , Poornapushkala Narayanan

Let X be a smooth projective variety carrying an Ulrich bundle. In the first part of this note, we construct an Ulrich sheaf on n-th symmetric power of X, which is a singular variety when $DimX >1$. As a consequence, we get the existence of…

Algebraic Geometry · Mathematics 2025-11-26 Anindya Mukherjee , Pabitra Barik

Let $X$ be a smooth projective scheme and $E$ a vector bundle on $X$. For a relative hypersurface $Y_f \subset \mathbb{P}(E)$ of degree $d$ defined by a global section $f$, we establish a functorial equivalence between the category of…

Algebraic Geometry · Mathematics 2026-04-21 Soham Mondal , Anindya Mukherjee

In this article, we provide an overview of a one-to-one correspondence between representations of the generalized Clifford algebra $C_f$ of a ternary cubic form $f$ and certain vector bundles (called Ulrich bundles) on a cubic surface $X$.…

Rings and Algebras · Mathematics 2011-07-11 Emre Coskun , Rajesh S. Kulkarni , Yusuf Mustopa

In this article, the existence of Ulrich bundles on projective bundles $\mathbb P(E) \to X$ is discussed. In the case, that the base variety $X$ is a curve or surface, a close relationship between Ulrich bundles on $X$ and those on $\mathbb…

Algebraic Geometry · Mathematics 2025-03-04 Andreas Hochenegger

We establish the existence of rank two Ulrich vector bundles on surfaces that are either of maximal Albanese dimension or with irregularity 1, under many embeddings. In particular we get the first known examples of Ulrich vector bundles on…

Algebraic Geometry · Mathematics 2020-07-24 Angelo Felice Lopez

We prove the existence of Ulrich sheaves on the Hilbert scheme of two points on a polarized K3 surface or an abelian surface. The construction proceeds by descending Ulrich bundles on the surface to the symmetric square and lifting them to…

Algebraic Geometry · Mathematics 2026-03-20 Anindya Mukherjee , Pabitra Barik

We characterize the existence of an Ulrich vector bundle on a variety $X \subset P^N$ in terms of the existence of a subvariety satisfying some precise conditions. Then we use this fact to prove that a complete intersection of dimension $n…

Algebraic Geometry · Mathematics 2024-11-18 Angelo Felice Lopez , Debaditya Raychaudhury

We construct an Ulrich bundle on the blowup at a point when the original variety is embedded by a sufficiently positive linear system and carries an Ulrich bundle. In particular, we describe the relation between special Ulrich bundles on…

Algebraic Geometry · Mathematics 2016-07-12 Yeongrak Kim

We construct Euler and Stiefel-Whitney classes of vector bundles with quadratic form by analyzing the intersection theory of the associated quadric bundles. We also compute the Chow rings of quadric and isotropic flag bundles. Along the…

alg-geom · Mathematics 2008-02-03 D. Edidin , W. Graham

We discuss natural connections between three objects: quadratic forms with values in line bundles, conic bundles and quaternion orders. We use the even Clifford algebra, and the Brauer-Severi Variety, and other constructions to give natural…

Rings and Algebras · Mathematics 2011-01-11 Daniel Chan , Colin Ingalls

This paper deals with two problems about vector bundles on bielliptic surfaces. The first is to give a classification of Ulrich bundles on such surfaces $S$, which depends on the topological type of $S$. In doing so, we study the weak…

Algebraic Geometry · Mathematics 2026-01-23 Edoardo Mason

An Ulrich sheaf on an embedded projective variety is a normalized arithmetically Cohen-Macaulay sheaf with the maximum possible number of independent sections. Ulrich sheaves are important in the theory of Chow forms, Boij-Soderberg theory,…

Algebraic Geometry · Mathematics 2015-08-03 Rajesh Kulkarni , Yusuf Mustopa , Ian Shipman

We use certain special prehomogeneous representations of algebraic groups in order to construct aCM vector bundles, possibly Ulrich, on certain families of hypersurfaces. Among other results, we show that a general cubic hypersurface of…

Algebraic Geometry · Mathematics 2018-03-22 Laurent Manivel

On any smooth $n$-dimensional variety we give a pretty precise picture of rank $r$ Ulrich vector bundles with numerical dimension at most $\frac{n}{2}+r-1$. Also, we classify non-big Ulrich vector bundles on quadrics and on the Del Pezzo…

Algebraic Geometry · Mathematics 2023-07-11 Angelo Felice Lopez , Roberto Muñoz , José Carlos Sierra

We study the projective normality of the projective bundle of an Ulrich vector bundle embedded through the complete linear system of its tautological line bundle. The focus will be on Ulrich bundles defined over curves, surfaces with…

Algebraic Geometry · Mathematics 2024-12-23 Valerio Buttinelli
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