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In this work we prove the local multiplicity at most one theorem underlying the definition and theory of local $\gamma$-, $\epsilon$- and $L$-factors, defined by virtue of the generalized doubling method, over any local field of…

Number Theory · Mathematics 2021-03-09 Avraham Aizenbud , Dmitry Gourevitch , Eyal Kaplan

Inspired by the work of Laumon on $\varepsilon$-factors and by Deligne's $1974$ letter to Serre, we give an explicit cohomological definition of $\varepsilon$-factors for $\ell$-adic Galois representations over henselian discrete valuation…

Algebraic Geometry · Mathematics 2019-10-31 Quentin Guignard

This note is a companion to the author's "Higher de Rham epsilon factors". Using Grayson's binary complexes and the formalism of $n$-Tate spaces we develop a formalism of graded epsilon lines, associated to flat connections on a higher…

Algebraic Geometry · Mathematics 2018-07-23 Michael Groechenig

Local fields, and fields complete with respect to a discrete valuation, are essential objects in commutative algebra, with applications to number theory and algebraic geometry. We formalize in Lean the basic theory of discretely valued…

Logic in Computer Science · Computer Science 2023-12-19 María Inés de Frutos-Fernández , Filippo Alberto Edoardo Nuccio Mortarino Majno Di Capriglio

We observe algebraic derivations on an affine domain B defined over an algebraically closed field of characteristic 0, which are called locally finite derivations in commutative and non-commutative contexts in other references. We observe…

Algebraic Geometry · Mathematics 2013-03-07 Kayo Masuda , Masayoshi Miyanishi

If $V$ is a smooth projective variety defined over a local field $K$ with finite residue field, so that its \'etale cohomology over the algebraic closure $\bar{K}$ is supported in codimension 1, then the mod $p$ reduction of a projective…

Number Theory · Mathematics 2007-05-23 Hélène Esnault

Laumon introduced the local Fourier transform for $\ell$-adic Galois representations of local fields, of equal characteristic $p$ different from $\ell$, as a powerful tool to study the Fourier-Deligne transform of $\ell$-adic sheaves over…

Algebraic Geometry · Mathematics 2010-12-13 Ahmed Abbes , Takeshi Saito

We study the relationship between the local and global Galois theory of function fields over a complete discretely valued field. We give necessary and sufficient conditions for local separable extensions to descend to global extensions, and…

Rings and Algebras · Mathematics 2018-10-24 David Harbater , Julia Hartmann , Daniel Krashen , R. Parimala , V. Suresh

By a suitable shifting-the-mean parametrization at the Dirichlet series level and Delange's Tauberian theorems, we show that the number of factors in random ordered factorizations of integers is asymptotically normally distributed.

Number Theory · Mathematics 2009-02-20 Hsien-Kuei Hwang , Svante Janson

Let F be a p-adic field, W_F its absolute Weil group, and let k be an algebraically closed field of prime characteristic l different from p. Attached to any l-adic representation of W_F are local epsilon- and L-factors. There are natural…

Number Theory · Mathematics 2017-08-11 David Helm , Gilbert Moss

Many active mathematical research topics nowadays include the concepts of valued fields and local fields, especially the local field of p-adic numbers Qp and the field of formal Laurent series F((X)). Local fields are a notion situated in…

Number Theory · Mathematics 2019-05-07 Mouad Moutaoukil , Abdelkader Benaissat

In this paper we present the notion of ``Deligne localized functors'', an avatar of the derived functors, whose definition is inspired by Deligne in [SGA 4,XVII]. Their definition involves the notions of Ind and Pro categories, they always…

Category Theory · Mathematics 2007-05-23 Maurizio Cailotto

For multiplicative characters of a non-Archimedean local field, we have a formula for epsilon factors due to John Tate. Before Tate, Erich Lamprecht also gave a formula for local epsilon factors of linear characters. Then Tate generalizes…

Number Theory · Mathematics 2019-05-02 Sazzad Ali Biswas

We consider local-global principles for rational points on varieties, in particular torsors, over one-variable function fields over complete discretely valued fields. There are several notions of such principles, arising either from the…

Number Theory · Mathematics 2020-06-15 David Harbater , Julia Hartmann , Valentijn Karemaker , Florian Pop

We develop a sequential-topological study of rational points of schemes of finite type over local rings typical in higher dimensional number theory and algebraic geometry. These rings are certain types of multidimensional complete fields…

Algebraic Geometry · Mathematics 2012-03-02 Alberto Camara

The authors establish a connection between the Quillen K-theory of certain local fields and the de Rham-Witt complex of their rings of integers with logarithmic poles at the maximal ideal. They consider fields K that are complete discrete…

K-Theory and Homology · Mathematics 2019-08-12 Lars Hesselholt , Ib Madsen

This paper gives a survey on a valuation theoretical approach to local uniformization in positive characteristic, the model theory of valued fields in positive characteristic, and their connection with the valuation theoretical phenomenon…

Commutative Algebra · Mathematics 2013-04-02 Franz-Viktor Kuhlmann

Let K be a complete discretely valued field with residue field k and F be a function field of a curve over K. Let L/F be a Galois extension of degree n. If n is coprime to char(k), then under some assumptions on k(e.g. k is algebraically…

Algebraic Geometry · Mathematics 2023-04-26 Sumit Chandra Mishra

This work sets the statistical affine shape theory in the context of real normed division algebras. The general densities apply for every field: real, complex, quaternion, octonion, and for any noncentral and non-isotropic elliptical…

Statistics Theory · Mathematics 2010-12-30 Jose A. Diaz-Garcia , Francisco J. Caro-Lopera

This is a continuation of a previous paper by the same authors. In the former paper, it was proved that in order to obtain local uniformization for valuations centered on local domains, it is enough to prove it for rank one valuations. In…

Commutative Algebra · Mathematics 2015-09-11 Josnei Novacoski , Mark Spivakovsky
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