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Related papers: Duality and Tameness

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We prove a duality theorem for graded algebras over a field that implies several known duality results : graded local duality, versions of Serre duality for local cohomology and of Suzuki duality for generalized local cohomology, and…

Commutative Algebra · Mathematics 2007-05-23 Marc Chardin , Kamran Divaani-Aazar

In this paper we study local cohomology of finitely generated bigraded modules over a standard bigraded ring with respect to the irrelevant bigraded ideals and establish a duality theorem. Several applications are considered.

Commutative Algebra · Mathematics 2007-05-23 Juergen Herzog , Ahad Rahimi

We give an example that shows that not all local cohomology modules are tame in the sense of Brodmann and Hellus.

Commutative Algebra · Mathematics 2007-05-23 Steven Dale Cutkosky , Juergen Herzog

We develop basic homological machinery for Z-algebras in order to prove a version of local duality for Ext-finite connected Z-algebras. As an application, we compare two notions of regularity for such algebras.

Rings and Algebras · Mathematics 2023-05-17 Izuru Mori , Adam Nyman

We prove a duality theorem for quantum groupoid (weak Hopf algebra) actions that extends the well-known result for usual Hopf algebras.

Quantum Algebra · Mathematics 2007-05-23 Dmitri Nikshych

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

The object of this paper is the tameness conjecture which describes an arbitrary graded k-algebra homomorphism of polytopal rings. We give further evidence of this conjecture by showing supporting results concerning joins, multiples and…

Commutative Algebra · Mathematics 2012-10-02 Viveka Erlandsson

From the method of realization of bialgebras developped in a preceding paper, we obtain the Duality Theorem and apply it to the study of the ideal of relations for each realized bialgebra. This is detailed in the english version of the…

Quantum Algebra · Mathematics 2007-05-23 Eric Mourre

In the 1950s and 1960s Tate proved some duality theorems in the Galois cohomology of finite modules and abelian varieties. As for most of Tate's work this has had a profound influence on mathematics with many applications and further…

Number Theory · Mathematics 2025-12-03 James S. Milne

Homological algebra of modules over posets is developed, as closely parallel as possible to that of finitely generated modules over noetherian commutative rings, in the direction of finite presentations and resolutions. Centrally at issue…

Algebraic Topology · Mathematics 2020-08-12 Ezra Miller

For a Poisson algebra $A$, by studying its universal enveloping algebra $A^{pe}$, we prove a duality theorem between Poisson homology and cohomology of $A$.

Rings and Algebras · Mathematics 2014-04-21 Jiafeng Lü , Xingting Wang , Guangbin Zhuang

We demonstrate the versatility of the tangle-tree duality theorem for abstract separation systems by using it to prove tree-of-tangles theorems. This approach allows us to strengthen some of the existing tree-of-tangles theorems by bounding…

Combinatorics · Mathematics 2025-05-20 Christian Elbracht , Jay Lilian Kneip , Maximilian Teegen

A duality theorem for the singularity category of a finite dimensional Gorenstein algebra is proved. It complements a duality on the category of perfect complexes, discovered by Happel. One of its consequences is an analogue of Serre…

Representation Theory · Mathematics 2019-05-07 Dave Benson , Srikanth B. Iyengar , Henning Krause , Julia Pevtsova

In this paper we show how the theory of monads can be used to deduce in a uniform manner several duality theorems involving categories of relations on one side and categories of algebras with homomorphisms preserving only some operations on…

Logic · Mathematics 2013-02-25 Dirk Hofmann , Pedro Nora

We give an alternative, more geometric, proof of the well-known Joyal-Tierney Theorem in locale theory by utilizing Priestley duality for frames.

General Topology · Mathematics 2023-04-26 Guram Bezhanishvili , Luca Carai , Patrick Morandi

In this thesis, we introduce a new cohomology theory associated to a Lie 2-algebras and a new cohomology theory associated to a Lie 2-group. These cohomology theories are shown to extend the classical cohomology theories of Lie algebras and…

Differential Geometry · Mathematics 2018-11-09 Camilo Angulo

This expository article delves into the Greenlees-May Duality Theorem which is widely thought of as a far-reaching generalization of the Grothendieck's Local Duality Theorem. This theorem is not addressed in the literature as it merits and…

Commutative Algebra · Mathematics 2017-06-20 Hossein Faridian

We prove that the $0$-th local cohomology of the jacobian ring of a projective hypersurface with isolated singularities has a nice interpretation it in the context of linkage theory. Roughly speaking, it represents a measure of the failure…

Algebraic Geometry · Mathematics 2020-01-13 Davide Franco

Let K be a complete discretely valued field with residue field k of characteristic p>0. There is a duality theory for cohomology with coefficients in commutative finite K-group schemes in the following cases : char(K)=0 and k finite (Tate),…

Algebraic Geometry · Mathematics 2014-11-05 Cédric Pépin

In this paper, we formulate and prove a duality for cohomology of curves over perfect fields of positive characteristic with coefficients in Neron models of abelian varieties. This is a global function field version of the author's previous…

Number Theory · Mathematics 2020-11-18 Takashi Suzuki
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