Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Sonia Brivio"'
Autor:
Sonia Brivio
Publikováno v:
Le Matematiche, Vol 44, Iss 2, Pp 163-172 (1989)
Let X be a projective manifold, of dimension n≥3, and L a very ample line bundle on X. In this paper we investigate the pairs (X,L) with the following property: there exists a transversal intersection of n-1 members of |L| which is a smooth d-gonal
Externí odkaz:
https://doaj.org/article/45ad1bfe137344f08bd5687581b797dc
Autor:
Sonia Brivio, Filippo F. Favale
In this paper we deal with Brill-Noether theory for higher-rank sheaves on a polarized nodal reducible curve $(C,\underline{w})$ following the ideas of [arXiv:alg-geom/9511003v1]. We study the Brill-Noether loci of $\underline{w}$-stable depth one sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::026c50abc771eccc33b9d1464d64ba8b
https://hdl.handle.net/10281/403664
https://hdl.handle.net/10281/403664
Autor:
Sonia Brivio, Filippo F. Favale
Let $(C,\underline{w})$ be a polarized nodal reducible curve. In this paper we consider coherent systems of type $(r,d,k)$ on $C$ with $k < r$. We prove that the moduli spaces of $(\underline{w},\alpha)$-stable coherent systems stabilize for large $\
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bedbb7969566633da0140858bc70846b
Autor:
Sonia Brivio, Filippo F. Favale
Let $C$ be a curve with two smooth components and a single node. Let $\mathcal{U}_C(r,w,\chi)$ be the moduli space of $w$-semistable classes of depth one sheaves on $C$ having rank $r$ on both components and Euler characteristic $\chi$. In this paper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::229a2e0bbd45feed795be7cd7e1a1bc0
http://hdl.handle.net/10281/254370
http://hdl.handle.net/10281/254370
Autor:
Filippo F. Favale, Sonia Brivio
In this paper we deal with polarizations on a nodal curve $C$ with smooth components. Our aim is to study and characterize a class of polarizations, which we call "good", for which depth one sheaves on $C$ reflect some properties that hold for vector
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a73fc06c8278721224393785c6cb1d2
http://hdl.handle.net/10281/320585
http://hdl.handle.net/10281/320585
Autor:
Sonia Brivio
Publikováno v:
Collectanea Mathematica. 69:131-150
Let E be a stable vector bundle of rank r and slope \(2g-1\) on a smooth irreducible complex projective curve C of genus \(g \ge 3\). In this paper we show a relation between theta divisor \(\Theta _E\) and the geometry of the tautological model \(P_
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8a2c1acb8836150210a5c3425eebeac
https://doi.org/10.1007/s13348-017-0198-2
https://doi.org/10.1007/s13348-017-0198-2
Autor:
Sonia Brivio, Filippo F. Favale
Let $C$ be a polarized nodal curve of compact type. In this paper we study coherent systems $(E,V)$ on $C$ given by a depth one sheaf $E$ having rank $r$ on each irreducible component of $C$ and a subspace $V \subset H^0(E)$ of dimension $k$. Moduli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f81b28fcb5beafc18fc069826323339e
http://hdl.handle.net/10281/281042
http://hdl.handle.net/10281/281042
Autor:
Filippo F. Favale, Sonia Brivio
In this paper we investigate generalized theta divisors $\Theta_r$ in the moduli spaces $\mathcal{U}_C(r,r)$ of semistable vector bundles on a curve $C$ of genus $2$. We provide a desingularization $\Phi$ of $\Theta_r$ in terms of a projective bundle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::370c78bd32266a509c31e961b00e46ac
Autor:
Sonia Brivio
Let [Formula: see text] be a smooth complex projective curve of genus [Formula: see text] and let [Formula: see text] be a point. From Hecke correspondence, any stable bundle on [Formula: see text] of rank [Formula: see text] and determinant [Formula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4512a8b80dee6358666e02409e52ee49
http://hdl.handle.net/10281/154650
http://hdl.handle.net/10281/154650
Autor:
Sonia Brivio
Let C be a smooth complex irreducible projective curve of genus g ≥ 3. We show that if C is a Petri curve with g ≥ 4, a general stable vector bundle E on C, with integer slope, admits an irreducible and reduced theta divisor ΘE, whose singular l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::756d61e2b1084888b6dd7b90c174671f
http://hdl.handle.net/10281/100389
http://hdl.handle.net/10281/100389