Zobrazeno 1 - 10
of 154
pro vyhledávání: '"14B20"'
Autor:
Drézet, Jean-Marc
A primitive multiple scheme is a Cohen-Macaulay scheme $\bf X$ such that the associated reduced scheme $X={\bf X}_{red}$ is smooth, irreducible, and that $\bf X$ can be locally embedded in a smooth variety of dimension $\dim(X)+1$. If ${\bf I}_X$ is
Externí odkaz:
http://arxiv.org/abs/2410.17723
Autor:
Gao, Yuan
For a stopped Liouville manifold arising from a Liouville sector, we construct a symplectic analogue of the formal neighborhood of the stop on the level of Fukaya categories. This geometric construction is performed via Floer-theoretic methods by all
Externí odkaz:
http://arxiv.org/abs/2409.14966
Autor:
Drézet, Jean-Marc
A primitive multiple scheme is a Cohen-Macaulay scheme $Y$ such that the associated reduced scheme $X=Y_{red}$ is smooth, irreducible, and that $Y$ can be locally embedded in a smooth variety of dimension $\dim(X)+1$. If $I_X$ is the ideal sheaf of $
Externí odkaz:
http://arxiv.org/abs/2404.07639
Autor:
Rodríguez, Marta Pérez
Publikováno v:
Journal of Algebra 445 (2016), 78-102
Deformation theory is treated for locally notherian formal schemes (non necessarily smooth). The cotangent complex is defined in the derived category through the homology localization functor. The basic properties and results of a deformation theory
Externí odkaz:
http://arxiv.org/abs/2402.02879
Autor:
Halic, Mihai
The G3-property of a subvariety was introduced by Hironaka-Matsumura, and plays an important role for deducing connectedness and extension results. Unfortunately, it's a rather elusive notion, which is not always easy to establish. Most of the existi
Externí odkaz:
http://arxiv.org/abs/2401.16196
Autor:
Halupczok, Immanuel
These are notes from a mini-course about the main results of arXiv:2206.03438: I explain how, using suitable valued fields, one obtains a natural notion of canonical stratifications (of e.g. algebraic subsets of $\mathbb{R}^n$). I also explain how th
Externí odkaz:
http://arxiv.org/abs/2311.16987
Autor:
Louis, Robin
Let $X$ be a locally Noetherian scheme with a closed subscheme $Z$. Let $\mathcal{X}$ be the completion of $X$ at $Z$, considered as a formal scheme. We show that a coherent sheaf on $X$ is equivalently given by a coherent sheaf on $\mathcal{X}$, a c
Externí odkaz:
http://arxiv.org/abs/2312.09438
Autor:
Chiu, Christopher, Hauser, Herwig
We prove a result describing the structure of the formal neighborhoods of certain arcs in the arc space of an algebraic variety which are completely contained in the singular locus. In particular, we provide a precise formulation of the intuitive sta
Externí odkaz:
http://arxiv.org/abs/2310.15844
Autor:
Yang, Jianing
Given a Galois cover of curves $f$ over a field of characteristic $p$, the lifting problem asks whether there exists a Galois cover over a complete mixed characteristic discrete valuation ring whose reduction is $f$. In this paper, we consider the ca
Externí odkaz:
http://arxiv.org/abs/2307.03819
Autor:
Chambert-Loir, Antoine, Noûs, Camille
Nous \'etendons aux courbes de genre arbitraire le th\'eor\`eme de rationalit\'e de Cantor, lui-m\^eme une extension de th\'eor\`emes de Borel, P\'olya, Dwork, Bertrandias et Robinson. La d\'emonstration s'effectue en deux \'etapes. La premi\`ere est
Externí odkaz:
http://arxiv.org/abs/2305.17210