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Related papers: Brill-Noether Theory for stable vector bundles

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In this paper we study Brill-Noether loci for rank-two vector bundles and describe the general member of some components as suitable extensions of line bundles.

Algebraic Geometry · Mathematics 2015-06-15 Ciro Ciliberto , Flaminio Flamini

In this paper we compute the gonality and the dimension of the Brill-Noether loci $W^1_d(C)$ for curves in a non primitive linear system of a simple abelian surface, adapting vector bundles techniques \`a la Lazarsfeld originally introduced…

Algebraic Geometry · Mathematics 2025-03-25 Federico Moretti

In this paper, we study the $(k,l)$-stable vector bundles over non-singular projective curve $X$ of genus $g\geq 2,$ its relation with stability and Segre invariants. For rank 2 and 3, we give an explicit description and relation of…

Algebraic Geometry · Mathematics 2016-02-18 Osbaldo Mata-Gutiérrez

Higher rank Brill-Noether theory is completely known for curves of genus $\leq 3$. In this paper, we investigate the theory for curves of genus 4. Some of our results apply to curves of arbitrary genus.

Algebraic Geometry · Mathematics 2016-10-18 H. Lange , P. E. Newstead

In this note we use the monodromy argument to prove a Noether-Lefschetz theorem for vector bundles.

alg-geom · Mathematics 2008-02-03 Jeroen G. Spandaw

We develop a novel approach to the Brill-Noether theory of curves endowed with a degree k cover of the projective line via Bridgeland stability conditions on elliptic K3 surfaces. We first develop the Brill-Noether theory on elliptic K3…

Algebraic Geometry · Mathematics 2025-06-24 Gavril Farkas , Soheyla Feyzbakhsh , Andrés Rojas

A refined Brill--Noether theory seeks to determine which linear series are admitted by a ``general'' curve in a particular Brill--Noether locus. However, as Brill--Noether loci are not irreducible in general, a coarse answer is given by the…

Algebraic Geometry · Mathematics 2025-07-21 Richard Haburcak

The Brill-Noether theory of curves plays a fundamental role in the theory of curves and their moduli and has been intensively studied since the 19th century. In contrast, Brill-Noether theory for higher dimensional varieties is less…

Algebraic Geometry · Mathematics 2024-09-27 Izzet Coskun , Jack Huizenga , Neelarnab Raha

We completely describe the Brill-Noether theory of pencils on general primitive covers of elliptic curves of any degree.

Algebraic Geometry · Mathematics 2024-01-26 Andreas Leopold Knutsen , Margherita Lelli-Chiesa

We survey some recent progress in the theory of vector bundles on algebraic varieties and related questions in algebraic K-theory.

Algebraic Geometry · Mathematics 2021-11-08 Aravind Asok , Jean Fasel

Trigonal curves provide an example of Brill-Noether special curves. Theorem 1.3 of [9] characterizes the Brill-Noether theory of general trigonal curves and the refined stratification by Brill-Noether splitting loci, which parametrize line…

Algebraic Geometry · Mathematics 2020-02-04 Hannah K. Larson

Brill-Noether theory studies the existence and deformations of curves in projective spaces; its basic object of study is $\mathcal{W}^r_{d,g}$, the moduli space of smooth genus $g$ curves with a choice of degree $d$ line bundle having at…

Algebraic Geometry · Mathematics 2013-11-25 Nathan Pflueger

We study Brill-Noether existence on a finite graph using methods from polyhedral geometry and lattices. We start by formulating analogues of the Brill-Noether conjectures (both the existence and non-existence parts) for…

Combinatorics · Mathematics 2022-03-01 Madhusudan Manjunath

Let X be a smooth algebraic curve of genus g>=2. A stable vector bundle over X of degree d, rank n with at least k sections is called a Brill-Noether bundle of type (n,d,k). By tensoring coherent systems, we prove that most of the known…

Algebraic Geometry · Mathematics 2007-11-27 L. Brambila-Paz , Angela Ortega

The aim of this paper is two--fold. We first strongly improve our previous main result Theorem 3.1 in Arxiv 1702.00918v3 12Feb2018 ("Brill-Noether loci of rank two vector bundles on a general $\nu$-gonal curve"), concerning classification…

Algebraic Geometry · Mathematics 2018-09-07 Youngook Choi , Flaminio Flamini , Seonja Kim

We develop a theory of Brill-Noether divisors on the moduli space of stable spin curves of genus g, and compute the classes of these loci. A spin Brill-Noether cycle is defined in terms of the relative position of the spin structure with…

Algebraic Geometry · Mathematics 2010-05-07 Gavril Farkas

In this paper, we consider higher rank Brill-Noether theory for smooth curves of genus 5, obtaining new upper bounds for non-emptiness of Brill-Noether loci and many new examples.

Algebraic Geometry · Mathematics 2016-06-16 H. Lange , P. E. Newstead

We show that a general curve in an explicit class of what we call Du Val pointed curves satisfies the Brill-Noether Theorem for pointed curves. Furthermore, we prove that a generic pencil of Du Val pointed curves is disjoint from all…

Algebraic Geometry · Mathematics 2023-03-10 Gavril Farkas , Nicola Tarasca

We investigate the Brill-Noether theory of rank-two, degree-$d$ stable vector bundles of speciality $3$ on a general $\nu$-gonal curve of genus $g$, $3 \leq \nu < \lfloor \frac{g+3}{2} \rfloor$. Our approach leverages universal extension…

Algebraic Geometry · Mathematics 2026-02-24 Youngook Choi , Flamino Flamini , Seonja Kim

We construct coarse moduli spaces for `Brill-Noether pairs'. Such a pair consists of a torsion-free sheaf $E$ over an algebraic curve $X$ and a vector subspace $\Lambda$ of its space of sections $H^0(E)$. The construction works for an…

alg-geom · Mathematics 2008-02-03 A. D. King , P. E. Newstead