Zobrazeno 1 - 10
of 226
pro vyhledávání: '"Finite morphism"'
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:
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
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
Publikováno v:
Applied Categorical Structures. 25:971-990
This paper is motivated by the observation that the characteristic morphism of an algebra relates to certain smoothness condition closely. We show that for an algebra A of finite global dimension, if the characteristic morphism is injective, then A h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a034745d73619663a79953bb4b50fe26
https://doi.org/10.1007/s10485-016-9437-z
https://doi.org/10.1007/s10485-016-9437-z
Publikováno v:
Arab Journal of Mathematical Sciences. 22:275-284
In this paper, we prove that a map between Riemannian manifolds is an f -harmonic morphism in a general sense if and only if it is horizontally weakly conformal, satisfying some conditions, and we investigate the properties of f -harmonic morphism in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18293ceb4be99d43295a660a11459c51
https://doi.org/10.1016/j.ajmsc.2016.02.001
https://doi.org/10.1016/j.ajmsc.2016.02.001
Publikováno v:
Journal of Algebra. 453:68-100
A skew morphism of a group is a generalisation of an automorphism, arising in the context of regular Cayley maps or of groups expressible as a product AB of subgroups A and B with B cyclic and A ∩ B = { 1 } . A skew morphism of a group A is a bijec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5edeae6421ea6965cdbdd2fcf6ea21eb
https://doi.org/10.1016/j.jalgebra.2015.12.024
https://doi.org/10.1016/j.jalgebra.2015.12.024
Autor:
Marta Rodríguez
Publikováno v:
Journal of Algebra. 445:78-102
We define the cotangent complex of a morphism f : X → Y of locally noetherian formal schemes as an object in the derived category D − ( X ) through local homology. We discuss its basic properties and establish the basics results of a deformation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10b1874386468e7470c3d227d3f5da1f
https://doi.org/10.1016/j.jalgebra.2015.07.041
https://doi.org/10.1016/j.jalgebra.2015.07.041
Autor:
Francis Wlazinski
Publikováno v:
RAIRO - Theoretical Informatics and Applications. 50:3-20
Under some hypotheses, if the image by a morphism of a (k+ 1)-power-free word contains a (k+ 1)-power, we can reduce this word to obtain a new word with the same scheme. These hypotheses are satisfied in the case of uniform morphisms. This allows us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69f06aedbcad9912d6b02f26b4f77490
https://doi.org/10.1051/ita/2016006
https://doi.org/10.1051/ita/2016006