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Related papers: Poitou-Tate duality for arithmetic schemes

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In this paper we obtain a Poitou-Tate exact sequence for finite and flat group schemes over a global function field. We also extend the duality theorems for 1-motives over number fields obtained by D.Harari and T.Szamuely to the function…

Number Theory · Mathematics 2008-11-24 Cristian D. Gonzalez-Aviles

We extend the classical duality results of Poitou and Tate for finite discrete Galois modules over local and global fields (local duality, nine-term exact sequence, etc.) to all affine commutative group schemes of finite type, building on…

Number Theory · Mathematics 2023-02-07 Zev Rosengarten

In this paper, we formulate and prove a derived category version of Poitou-Tate duality on Galois cohomology of compact modules (with a continuous Galois action) over a pro-p ring, where p is a prime.

Number Theory · Mathematics 2012-12-24 Meng Fai Lim

If K is a number field, arithmetic duality theorems for tori and complexes of tori over K are crucial to understand local-global principles for linear algebraic groups over K. When K is a global field of positive characteristic, we prove…

Number Theory · Mathematics 2020-01-29 Cyril Demarche , David Harari

In this paper, we establish a Poitou-Tate's global duality for totally positive Galois cohomology. We illustrate this result in the case of the twisted module "\`a la Tate" $\mathbb{Z}_{2}(i)$, $i$ integer.

Number Theory · Mathematics 2021-10-28 H. Asensouyis , J. Assim , Z. Boughadi , Y. Mazigh

We complete the picture of local and global arithmetic duality theorems for short complexes of finite Galois modules and tori over $p$-adic function fields. In view of the duality theorems, we deduce a $12$-term Poitou--Tate exact sequence…

Number Theory · Mathematics 2019-10-25 Yisheng Tian

We discuss duality pairings on integral \'etale motivic cohomology groups of regular and proper schemes over algebraically closed fields, local fields, finite fields, and arithmetic schemes.

Number Theory · Mathematics 2017-12-27 Thomas H. Geisser

We generalize Blumberg-Mandell's K-theoretic Poitou-Tate duality to arithmetic schemes of arbitrary dimension, smooth and proper over S-integers. As in our earlier papers on the subject, we discuss how to model the compactly supported side…

K-Theory and Homology · Mathematics 2025-04-22 Oliver Braunling

We show that Bloch's complex of relative zero-cycles can be used as a dualizing complex over perfect fields and number rings. This leads to duality theorems for torsion sheaves on arbitrary separated schemes of finite type over…

Algebraic Geometry · Mathematics 2008-11-26 Thomas Geisser

We consider a complex of tori of length 2 defined over a number field k. We establish here some local and global duality theorems for the (\'etale or Galois) hypercohomology of such a complex. We prove the existence of a Poitou-Tate exact…

Number Theory · Mathematics 2009-06-19 Cyril Demarche

Using linear functional-based duality of modules, we generalize the syndrome decoding algorithm of linear codes over finite fields to those over finite commutative rings. Moreover, If the ring is local the algorithm is simplified by…

Information Theory · Computer Science 2014-10-14 Asmae Drhima , Mustapha Najmeddine

In this paper we take some classical ideas from commutative algebra, mostly ideas involving duality, and apply them in algebraic topology. To accomplish this we interpret properties of ordinary commutative rings in such a way that they can…

Algebraic Topology · Mathematics 2007-05-23 W. G. Dwyer , J. P. C. Greenlees , S. Iyengar

We give a refinement of Saito's arithmetic duality for two-dimensional local rings by giving algebraic group structures for arithmetic cohomology groups.

Number Theory · Mathematics 2023-06-19 Takashi Suzuki

We introduce a category of dual pairs of finite locally free algebras over a ring. This gives an efficient way to represent finite locally free commutative group schemes. We give a number of algorithms to compute with dual pairs of…

Number Theory · Mathematics 2017-09-29 Peter Bruin

We prove several duality theorems for the Galois and etale cohomology of 1-motives defined over local and global fields and establish a 12-term Poitou-Tate type exact sequence. The results give a common generalisation and sharpening of…

Number Theory · Mathematics 2007-05-23 David Harari , Tamas Szamuely

We classify Galois objects for the dual of a group algebra of a finite group over an arbitrary field.

Quantum Algebra · Mathematics 2010-06-22 Cesar Galindo , Manuel Medina

A ring with an Auslander dualizing complex is a generalization of an Auslander-Gorenstein ring. We show that many results which hold for Auslander-Gorenstein rings also hold in the more general setting. On the other hand we give criteria…

Rings and Algebras · Mathematics 2007-05-23 Amnon Yekutieli , James J. Zhang

Let $k$ be a global field of characteristic $p>0$. Denote $\Omega_k$ the set of places of $k$ and let $S$ be a non-empty subset of $\Omega_k$. We consider a scheme $\mathscr{X} \rightarrow Spec(\mathcal{O}_S)$ smooth, separated, of finite…

Number Theory · Mathematics 2025-05-09 Melvyn El Kamel-Meyrigne

We study modules over the ring $\widetilde{\C}$ of complex generalized numbers from a topological point of view, introducing the notions of $\widetilde{\C}$-linear topology and locally convex $\widetilde{\C}$-linear topology. In this…

General Topology · Mathematics 2007-05-23 Claudia Garetto

We prove a certain duality relation for orthogonal polynomials defined on a finite set. The result is used in a direct proof of the equivalence of two different ways of computing the correlation functions of a discrete orthogonal polynomial…

Classical Analysis and ODEs · Mathematics 2015-06-26 Alexei Borodin
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