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Related papers: On some local cohomology spectral sequences

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We introduce a new spectral sequence called the p-chain spectral sequence which converges to the (co-)homology of a contravariant C-space with coefficients in a covariant C-spectrum for a small category C. It is different from the…

Algebraic Topology · Mathematics 2015-11-30 James F. Davis , Wolfgang Lueck

We discuss recent developments in the study of semiorthogonal decompositions of algebraic varieties with an emphasis on their behaviour in families. First, we overview new results concerning homological projective duality. Then we introduce…

Algebraic Geometry · Mathematics 2021-11-02 Alexander Kuznetsov

We show that the hypercohomology of the Chevalley-Eilenberg-de Rham complex of a Lie algebroid L over a scheme with coefficients in an L-module can be expressed as a derived functor. We use this fact to study a Hochschild-Serre type…

Rings and Algebras · Mathematics 2017-08-31 Ugo Bruzzo

We give a combinatorial description of local cohomology modules of a graded module over a semigroup ring, with support at the graded maximal ideal. This combinatorial framework yields Hochster-type formulas for the Hilbert series of such…

Commutative Algebra · Mathematics 2022-11-22 Byeongsu Yu , Laura Felicia Matusevich

Classical homological algebra takes place in additive categories. In homotopy theory such additive categories arise as homotopy categories of ``additive groupoid enriched categories'', in which a secondary analog of homological algebra can…

Algebraic Topology · Mathematics 2007-05-23 Hans Joachim Baues , Mamuka Jibladze

As a continuation of our previous work \cite{KV2} the aim of the recent paper is to investigate the solutions of special inhomogeneous linear functional equations by using spectral synthesis in translation invariant closed linear subspaces…

Complex Variables · Mathematics 2017-04-18 Gergely Kiss , Csaba Vincze

In this paper, we describe a novel way of identifying Adams spectral sequence $E_2$-terms in terms of homological algebra of quiver representations. Our method applies much more broadly than the standard techniques based on…

Algebraic Topology · Mathematics 2025-04-07 Robert Burklund , Piotr Pstrągowski

Some affirmative answers are given to Huneke's problems. The calculation of local cohomology modules with respect to an arbitrary pair of ideals $I,J$ can be reduced to calculation of local cohomology modules with respect to a pair of…

Commutative Algebra · Mathematics 2014-07-21 M. Aghapournahr , Kh. Ahmadi-amoli , M. Y. Sadeghi

We compute some numerical invariants of local cohomology of the ring of invariants by a finite group, mainly in the modular case. Also, we present some applications. In particular, we study Cohen-Macaulay property of modular invariants from…

Commutative Algebra · Mathematics 2018-02-22 Mohsen Asgharzadeh

Recently, Meierfrankenfeld has published three theorems on the cohomology of a finitary module. They cover the local determination of complete reducibility; the local splitting of group extensions; and the representation of locally split…

Group Theory · Mathematics 2008-02-03 Paul Hewitt

In homotopy theory, exact sequences and spectral sequences consist of groups and pointed sets, linked by actions. We prove that the theory of such exact and spectral sequences can be established in a categorical setting which is based on…

Algebraic Topology · Mathematics 2010-07-06 Marco Grandis

Let R be a commutative Noetherian ring. We introduce a theory of formal local cohomology for complexes of R-modules. As an application, we establish some relations between formal local cohomology, local homology, local cohomology and local…

Commutative Algebra · Mathematics 2011-11-30 Mohsen Asgharzadeh , Kamran Divaani-Aazar

In previous work, the authors have each introduced methods for studying the 2-line of the p-local Adams-Novikov spectral sequence in terms of the arithmetic of modular forms. We give the precise relationship between the congruences of…

Algebraic Topology · Mathematics 2008-11-14 Mark Behrens , Gerd Laures

We build a spectral sequence converging to the cohomology of a fusion system with a strongly closed subgroup. This spectral sequence is related to the Lyndon-Hochschild-Serre spectral sequence and coincides with it for the case of an…

Algebraic Topology · Mathematics 2014-10-01 Antonio Díaz Ramos

Our goal is to provide simple and practical algorithms in higher-order Fourier analysis which are based on spectral decompositions of operators. We propose a general framework for such algorithms and provide a detailed analysis of the…

Combinatorics · Mathematics 2025-01-22 Pablo Candela , Diego González-Sánchez , Balázs Szegedy

We initiate the study of the cohomology of (strict polynomial) bifunctors by introducing the foundational formalism, establishing numerous properties in analogy with the cohomology of functors, and providing computational techniques. Since…

K-Theory and Homology · Mathematics 2008-05-19 Vincent Franjou , Eric M. Friedlander

We study linear cocycles generated by nonautonomous delay equations in a suitable Hilbert space and their extensions, called compound cocycles, to exterior powers. Using a recent version of the frequency theorem, we develop analytical…

Dynamical Systems · Mathematics 2026-01-27 Mikhail Anikushin

We extend some properties of a pair of ideals described in terms of Tor modules to any number of ideals, including the well-known rigidity property. Those extensions require the development of a homological theory for spectral sequences…

Commutative Algebra · Mathematics 2026-04-23 Arindam Banerjee , Marc Chardin , Rafael Holanda

A persistence module is a functor $f: \mathbf{I} \to \mathsf{E}$, where $\mathbf{I}$ is the poset category of a totally ordered set. This work introduces saecular decomposition: a categorically natural method to decompose $f$ into simple…

Category Theory · Mathematics 2021-12-14 Robert Ghrist , Gregory Henselman-Petrusek

Let $\mathfrak a$ denote an ideal of a local ring $(R, \mathfrak m).$ Let $M$ be a finitely generated $R$-module. There is a systematic study of the formal cohomology modules $\varprojlim \HH^i(M/\mathfrak a^nM), i \in \mathbb Z.$ We…

Commutative Algebra · Mathematics 2007-05-23 Peter Schenzel