Zobrazeno 1 - 10
of 189
pro vyhledávání: '"Lelli Chiesa, P."'
We completely describe the Brill-Noether theory of pencils on general primitive covers of elliptic curves of any degree.
Comment: Added reference
Comment: Added reference
Externí odkaz:
http://arxiv.org/abs/2401.03519
The moduli space R_{g,2n} parametrizes double covers of smooth curves of genus g ramified at 2n points. We will prove the (uni)rationality of R_{g,2}, R_{g,4} and R_{g,6} in low genera.
Comment: 26 pages, comments are very welcome!
Comment: 26 pages, comments are very welcome!
Externí odkaz:
http://arxiv.org/abs/2310.16635
We survey basic results concerning Prym varieties, the Prym-Brill-Noether theory initiated by Welters, and Brill-Noether theory of general \'etale double covers of curves of genus g>=2. We then specialize to curves on Nikulin surfaces and show that \
Externí odkaz:
http://arxiv.org/abs/2305.06128
Let $(S,L)$ be a general primitively polarized $K3$ surface of genus $g$. For every $0\leq \delta \leq g$ we consider the Severi variety parametrizing integral curves in $|L|$ with exactly $\delta$ nodes as singularities. We prove that its closure in
Externí odkaz:
http://arxiv.org/abs/2112.09398
Autor:
Lelli-Chiesa, Margherita
We show that the Brill-Noether locus M^3_{18,16} is an irreducible component of the Gieseker-Petri locus in genus 18 having codimension 2 in the moduli space of curves. This result disproves a conjecture predicting that the Gieseker-Petri locus is al
Externí odkaz:
http://arxiv.org/abs/2002.10550
This paper deals with singularities of genus 2 curves on a general (d_1,d_2)-polarized abelian surface (S,L). In analogy with Chen's results concerning rational curves on K3 surfaces [Ch1,Ch2], it is natural to ask whether all such curves are nodal.
Externí odkaz:
http://arxiv.org/abs/1901.07603
Autor:
Alessandro Calisti, Kibreab Belay, Andrea Mombo, Faisal Abdelgalil Nugud, Diaaeldinn Yaseen Salman, Pierluigi Lelli Chiesa
Publikováno v:
La Pediatria Medica e Chirurgica, Vol 45, Iss 2 (2023)
Primary closure techniques that have been updated and longterm follow-up for CBE (classic bladder exstrophy) may be out of reach for many patients living in resource-limited settings. Late referrals to medical care and primary closures that lack the
Externí odkaz:
https://doaj.org/article/6ca641bedab340048d50bfd7bbf9ed8d
In this paper we construct Ulrich bundles of low rank on three-dimensional scrolls (with respect to the tautological line bundle). We pay special attention to the four types of threefold scrolls in $\mathbb{P}^5$ which were classified in [Ott92].
Externí odkaz:
http://arxiv.org/abs/1808.00074
Primitively polarized genus $g$ Nikulin surfaces $(S,M,H)$ are of two types, that we call standard and non-standard depending on whether the lattice embedding $\mathbb{Z}[H] \oplus_{\perp} \mathbf{N} \subset \rm{Pic}(S)$ is primitive. Here $H$ is the
Externí odkaz:
http://arxiv.org/abs/1802.01201
Publikováno v:
J. Inst. Math. Jussieu 20 (2021) 1547-1584
Let F^N_g be the moduli space of polarized Nikulin surfaces (Y,H) of genus g and let P^N_g be the moduli of triples (Y,H,C), with C in |H| a smooth curve. We study the natural map \chi_g:P^N_g -> R_g, where R_g is the moduli space of Prym curves of g
Externí odkaz:
http://arxiv.org/abs/1708.07339