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Related papers: Class field theory for curves over $p$-adic fields

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We study the class field theory of curve defined over two dimensional local field. The approch used here is a combination of the work of Kato-Saito, and Yoshida where the base field is one dimensional

Algebraic Geometry · Mathematics 2007-05-23 Belgacem Draouil

We generalize Deligne's approach to tame geometric class field theory to the case of a relative curve, with arbitrary ramification.

Algebraic Geometry · Mathematics 2019-08-21 Quentin Guignard

We establish a ramified class field theory for smooth projective curves over local fields. As key steps in the proof, we obtain new results in the class field theory for 2-dimensional local fields of positive characteristic, and prove a…

Algebraic Geometry · Mathematics 2023-07-31 Amalendu Krishna , Subhadip Majumder

For a curve $X$ over a $p$-adic field $k$, using the class field theory of $X$ due to S. Bloch and S. Saito we study the abelian geometric fundamental group $\pi_1^{\mathrm{ab}}(X)^{\mathrm{geo}}$ of $X$. In particular, it is investigated a…

Number Theory · Mathematics 2022-01-19 Evangelia Gazaki , Toshiro Hiranouchi

We prove that the the kernel of the reciprocity map for a product of curves over a $p$-adic field with split semi-stable reduction is divisible. We also consider the $K_1$ of a product of curves over a number field.

Number Theory · Mathematics 2007-10-15 Takao Yamazaki

For a quasi-projective scheme $X$ admitting a smooth compactification over a local field of residue characteristic $p > 0$, we construct a continuous reciprocity homomorphism from a tame class group to the abelian tame etale fundamental…

Algebraic Geometry · Mathematics 2026-01-21 Rahul Gupta , Amalendu Krishna , Jitendra Rathore

Author's generalization of one-dimensional class field theory to theory of abelian totally ramified p-extensions of a complete discrete valuation field with arbitrary non-separably p-closed residue field and its applications are described.

Number Theory · Mathematics 2007-05-23 Ivan Fesenko

In this paper we extend the unramified class field theory for arithmetic surfaces of K. Kato and S. Saito to the relative case. Let X be a regular proper arithmetic surface and let Y be the support of divisor on X. Let CH_0(X,Y) denote the…

Number Theory · Mathematics 2007-05-23 Alexander Schmidt

Class field theory furnishes an intrinsic description of the abelian extensions of a number field that is in many cases not of an immediate algorithmic nature. We outline the algorithms available for the explicit computation of such…

Number Theory · Mathematics 2021-03-30 Henri Cohen , Peter Stevenhagen

We prove, under some mild hypothesis, that an \'etale cover of curves defined over a number field has infinitely many specializations into an everywhere unramified extension of number fields. This constitutes an "absolute" version of the…

Number Theory · Mathematics 2017-09-26 Yuri Bilu , Jean Gillibert

In this expository article we present Rosenlicht's work on geometric class field theory, which classifies abelian coverings of smooth, projective, geometrically connected curves over perfect fields.

History and Overview · Mathematics 2022-11-18 Hanming Liu

Suppose $E$ is an elliptic curve defined over $\Q$. At the 1983 ICM the first author formulated some conjectures that propose a close relationship between the explicit class field theory construction of certain abelian extensions of…

Number Theory · Mathematics 2007-05-23 Barry Mazur , Karl Rubin

We study the distribution of algebraic points on curves in abelian varieties over finite fields.

Algebraic Geometry · Mathematics 2007-05-23 Fedor Bogomolov , Yuri Tschinkel

Let $U$ be a smooth and connected curve over an algebraically closed field of positive characteristic, with smooth compactification $X$. We generalize classical Geometric Class Field theory to provide a classification of fppf $G$-torsors…

Algebraic Geometry · Mathematics 2026-03-20 Bryden Cais , Shusuke Otabe

We study the Galois symbol map associated to the multiplicative group and an abelian variety which has good ordinary reduction over a $p$-adic field. As a byproduct, one can calculate the "class group" in the view of the class field theory…

Number Theory · Mathematics 2019-11-26 Toshiro Hiranouchi

Given a smooth and separated K(pi,1) variety X over a field k, we associate a "cycle class" in etale cohomology with compact supports to any continuous section of the natural map from the arithmetic fundamental group of X to the absolute…

Algebraic Geometry · Mathematics 2019-11-20 Hélène Esnault , Olivier Wittenberg

We give practical algorithms for computing the divisor class group and the gonality of a curve over a finite field, achieving several orders of magnitude speedup over existing methods for sufficiently large genus or residue field. The…

Number Theory · Mathematics 2026-02-20 Maarten Derickx , Kenji Terao

We obtain explicit formulas for the number of non-isomorphic elliptic curves with a given group structure (considered as an abstract abelian group). Moreover, we give explicit formulas for the number of distinct group structures of all…

Number Theory · Mathematics 2010-03-16 Reza Rezaeian Farashahi , Igor E. Shparlinski

We show the existence of group-theoretic sections of the "etale-by-geometrically abelian" quotient of the arithmetic fundamental group of hyperbolic curves over $p$-adic local fields relative to a proper and flat model which are…

Number Theory · Mathematics 2015-10-26 Mohamed Saidi

Let K be a field and G a finite group. The question of 'admissibility' of G over K was originally posed by Schacher, who gave partial results in the case K = Q. In this paper, we give necessary conditions for admissibility of a finite group…

Rings and Algebras · Mathematics 2012-01-11 B. Surendranath Reddy , V. Suresh
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