Zobrazeno 1 - 10
of 3 493
pro vyhledávání: '"Finite morphism"'
Autor:
Krashen, Daniel, Lieblich, Max
We develop a general theory of Clifford algebras for finite morphisms of schemes and describe applications to the theory of Ulrich bundles and connections to period-index problems for curves of genus 1.
Comment: Notation 2.2.2 and 2.3.1 in prior
Comment: Notation 2.2.2 and 2.3.1 in prior
Externí odkaz:
http://arxiv.org/abs/1509.07195
In this article we give a sufficient condition for a morphism $\varphi$ from a smooth variety $X$ to projective space, finite onto a smooth image, to be deformed to an embedding. This result puts some theorems on deformation of morphisms of curves an
Externí odkaz:
http://arxiv.org/abs/1007.3297
Autor:
Maxim, Laurenţiu1 (AUTHOR) maxim@math.wisc.edu
Publikováno v:
Mathematische Nachrichten. Nov2023, Vol. 296 Issue 11, p5232-5241. 10p.
Autor:
Lanteri, Antonio, Novelli, Carla
Publikováno v:
Rendiconti del Circolo Matematico di Palermo (Series 2); Oct2024, Vol. 73 Issue 6, p2257-2275, 19p
Autor:
Victor Stepanovich Kulikov
Publikováno v:
Pure and Applied Mathematics Quarterly. 16:1067-1082
A finite morphism $f:X\to \mathbb P^2$ of a a smooth irreducible projective surface $X$ is called an almost generic cover if for each point $p\in \mathbb P^2$ the fibre $f^{-1}(p)$ is supported at least on $deg(f)-2$ distinct points and $f$ is ramifi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::348bd84dc773136aa81bd93815981c42
https://doi.org/10.4310/pamq.2020.v16.n4.a7
https://doi.org/10.4310/pamq.2020.v16.n4.a7
Autor:
D. Sulca, O. E. Villamayor U.
Publikováno v:
Michigan Mathematical Journal. 71
We study the maximal multiplicity locus of a variety X over a field of characteristic p>0 that is provided with a finite surjective radicial morphism δ:X→V, where V is regular, for example, when X⊂An+1 is a hypersurface defined by an equation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::985164e8b379d234861bc368be42d2c9
https://doi.org/10.1307/mmj/20195775
https://doi.org/10.1307/mmj/20195775
Autor:
John Welliaveetil
Publikováno v:
European Journal of Mathematics. 6:453-487
Let k be an algebraically closed non-Archimedean non-trivially real valued field which is complete with respect to its valuation. Let $$\phi :C' \rightarrow C$$ be a finite morphism between smooth projective irreducible k-curves. The morphism $$\phi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed09d69e9841cf9eec2c2a545cead123
https://doi.org/10.1007/s40879-019-00359-y
https://doi.org/10.1007/s40879-019-00359-y
Autor:
Thomas Krämer, Giulio Codogni
We show that the degree of Gauss maps on abelian varieties is semicontinuous in families, and we study its jump loci. As an application we obtain that in the case of theta divisors this degree answers the Schottky problem. Our proof computes the degr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19b1611942d7689f6272c76fdd611b67
Autor:
Quang Hoa Tran
Publikováno v:
Journal of Algebra. 494:220-236
Given a birational parameterization $\phi: \mathbb{P}_k^2 - rightarrow \mathbb{P}_k^3$ of an algebraic surface $\mathscr S\subset \mathbb{P}_k^3$, we bound the number of 1-dimensional fibers of the canonical projection of the graph of $\phi$ onto its
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48e960e7f6ef57b1d6315af99270370e
https://doi.org/10.1016/j.jalgebra.2017.10.008
https://doi.org/10.1016/j.jalgebra.2017.10.008