Zobrazeno 1 - 10
of 120
pro vyhledávání: '"P. Stoppino"'
We study pencils of plane cubics with only one base point and general member smooth, giving a complete classification. Under the additional hypothesis that all members are irreducible, we prove that there exists a unique non-isotrivial pencil with th
Externí odkaz:
http://arxiv.org/abs/2407.04569
Autor:
Stoppino, Lidia
Let $f\colon S\to B$ a fibred surface with fibres of genus $g\geq 2$ and base curve of genus $b$. Let $u_f$ be its unitary rank. We prove many new slope inequalities involving $u_f$ and some other invariants of the fibration. As applications: (1) we
Externí odkaz:
http://arxiv.org/abs/2406.15909
Autor:
Barja, Miguel Angel, Stoppino, Lidia
We prove $f$-positivity of $\mathcal{O}_X(1)$ for arbitrary dimension fibrations over curves $f\colon X\to B$ whose general fibre is a complete intersection. In the special case where the family is a global complete intersection, we prove numerical s
Externí odkaz:
http://arxiv.org/abs/2207.11485
Autor:
Luca Pio Stoppino, Stefano Piscone, Ottavia Quarta Colosso, Sara Saccone, Paola Milillo, Nicola Della Valle, Rodolfo Sacco, Alfonso Reginelli, Luca Macarini, Roberta Vinci
Publikováno v:
Journal of Imaging, Vol 10, Iss 11, p 283 (2024)
A retrospective analysis was conducted to investigate how a bright luminal sign on high b-value diffusion-weighted imaging (DWI) could be considered as a new biomarker for identifying fibrotic strictures in Crohn’s disease (CD). Fibrotic strictures
Externí odkaz:
https://doaj.org/article/c87176cf84f944148857687a464b3b7c
Autor:
Stoppino, Lidia
Publikováno v:
Extended abstracts GEOMVAP 2019-geometry, topology, algebra, and applications; women in geometry and topology, 121-126, Trends Math. Res. Perspect. CRM
In this note, I review an aspect of some new techniques introduced recently in collaboration with Miguel \'Angel Barja and Rita Pardini: the construction of the continuous rank function. I give a sketch of how to use this function to prove the Barja-
Externí odkaz:
http://arxiv.org/abs/2102.04147
Autor:
Riva, Enea, Stoppino, Lidia
Publikováno v:
Proceedings of the London Mathematical Society (3) 124 (2022), no. 1, 83-105
We prove new slope inequalities for relatively minimal fibred surfaces, showing an influence of the relative irregularity, of the unitary rank and of the Clifford index on the slope. The argument uses Xiao's method and a new Clifford-type inequality
Externí odkaz:
http://arxiv.org/abs/2102.04142
Autor:
Luca Pio Stoppino, Stefano Piscone, Sara Saccone, Saul Alberto Ciccarelli, Luca Marinelli, Paola Milillo, Crescenzio Gallo, Luca Macarini, Roberta Vinci
Publikováno v:
Journal of Imaging, Vol 10, Iss 5, p 104 (2024)
This study aimed to demonstrate the potential role of dual-energy CT in assessing bone mineral density (BMD) using hydroxyapatite–fat material pairing in postmenopausal women. A retrospective study was conducted on 51 postmenopausal female patients
Externí odkaz:
https://doaj.org/article/02fb1b4f39b547728e85cdeeb00be52c
Publikováno v:
Communications in Contemporary Mathematics 22 (2020), no. 8, 1950079, 15 pp
Let $X$ be a smooth complex projective variety, $a\colon X\rightarrow A$ a morphism to an abelian variety such that $\mathrm{Pic}^0(A)$ injects into $\mathrm{Pic}^0(X)$ and let $L$ be a line bundle on $X$; denote by $h^0_a(X,L)$ the minimum of $h^0(X
Externí odkaz:
http://arxiv.org/abs/1806.03005
Publikováno v:
Transactions of the AMS. Vol. 372, n 12, pp 8663-8677 (2019)
Let $f\colon S\to B$ be a non-isotrivial fibred surface. We prove that the genus $g$, the rank $u_f$ of the unitary summand of the Hodge bundle $f_*\omega_f$ and the Clifford index $c_f$ satisfy the inequality $u_f \leq g - c_f$. Moreover, we prove t
Externí odkaz:
http://arxiv.org/abs/1709.05670
Publikováno v:
Algebraic Geometry, 6 (3) (2019) pp.302-311
Let $X$ be a smooth complex projective variety such that the Albanese map of $X$ is generically finite onto its image. Here we study the so-called eventual $m$-paracanonical map of $X$ (when $m=1$ we also assume $\chi(K_X)>0$). We show that for $m=1$
Externí odkaz:
http://arxiv.org/abs/1606.03301