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We provide two Mayer-Vietoris-like spectral sequences related to the localization over the complement of a closed subvariety of an algebraic variety by using techniques from $\mathcal{D}$-modules and homological algebra. We also give, as an…

Algebraic Geometry · Mathematics 2015-12-29 Alberto Castaño Domínguez

Let $S$ denote the graded polynomial ring $\C[x_1,...,x_m]$. We interpret a chain complex of free $S$-modules having finite length homology modules as an $S^1$-equivariant map $\C^m\sm\{0\} \to X$, where $X$ is a moduli space of exact…

Algebraic Topology · Mathematics 2009-11-17 T. B. Williams

The category of simplicial R-coalgebras over a presheaf of commutative unital rings on a small Grothendieck site is endowed with a left proper, simplicial, cofibrantly generated model category structure where the weak equivalences are the…

Algebraic Topology · Mathematics 2014-10-01 George Raptis

Let $R$ be a Gorenstein local ring, $\frak{a}$ an ideal in $R$, and $M$ an $R$-module. The local cohomology of $M$ supported at $\frak{a}$ can be computed by applying the $\frak{a}$-torsion functor to an injective resolution of $M$. Since…

Commutative Algebra · Mathematics 2017-09-19 Peder Thompson

Let X be a space and write LX for its free loop space equipped with the action of the circle group T given by dilation. We compute the equivariant cohomology H^*(LX_hT; Z/p) as a module over H^*(BT; Z/p) when X=CP^r for any positive integer…

Algebraic Topology · Mathematics 2007-05-23 Marcel Bokstedt , Iver Ottosen

We consider local Gorenstein duality for cochain spectra $C^*(BG;R)$ on the classifying spaces of compact Lie groups $G$ over complex orientable ring spectra $R$. We show that it holds systematically for a large array of examples of ring…

Algebraic Topology · Mathematics 2025-05-29 Luca Pol , Jordan Williamson

We generalize Quillen's $F$-isomorphism theorem, Quillen's stratification theorem, the stable transfer, and the finite generation of cohomology rings from finite groups to homotopical groups. As a consequence, we show that the category of…

Algebraic Topology · Mathematics 2019-07-08 Tobias Barthel , Natalia Castellana , Drew Heard , Gabriel Valenzuela

We discuss the Adams Spectral Sequence for R-modules based on commutative localized regular quotient ring spectra over a commutative S-algebra R in the sense of Elmendorf, Kriz, Mandell, May and Strickland. The formulation of this spectral…

Algebraic Topology · Mathematics 2014-10-01 Andrew Baker , Andrey Lazarev

We describe the formal properties of cellularization functors in triangulated categories and study the preservation of ring and module structures under these functors in stable homotopy categories in the sense of Hovey, Palmieri and…

Algebraic Topology · Mathematics 2015-05-28 Javier J. Gutiérrez

In this paper we obtain a description of the Grothendieck group of complex vector bundles over the classifying space of a p-local finite group in terms of representation rings of subgroups of its Sylow. We also prove a stable elements…

Algebraic Topology · Mathematics 2020-02-27 José Cantarero , Natàlia Castellana , Lola Morales

The aim of this short paper is two-fold: (i) to construct a TQ-localization functor on algebras over a spectral operad O, in the case where no connectivity assumptions are made on the O-algebras, and (ii) more generally, to establish the…

Algebraic Topology · Mathematics 2019-07-11 John E. Harper , Yu Zhang

We explain how to set up the homotopy spectral sequence of a (co)simplicial object in an $\infty$-category, with an emphasis on how to construct the differentials in a model-invariant manner.

Algebraic Topology · Mathematics 2021-10-04 David Blanc , Nicholas Meadows

We construct localization cofiber sequences for the topological Hochschild homology (THH) and topological cyclic homology (TC) of spectral categories. Using a global construction of the THH and TC of a scheme in terms of the perfect…

K-Theory and Homology · Mathematics 2014-11-11 Andrew J. Blumberg , Michael A. Mandell

We construct the analogue of the Serre spectral sequence for the bounded cohomology of simplicial sets with seminormed local coefficients. As applications, we obtain a (non-isometric) generalization of Gromov's mapping theorem and some…

Algebraic Topology · Mathematics 2025-03-31 Kevin Li , Marco Moraschini , George Raptis

Let $\Tt$ be an aperiodic and repetitive tiling of $\RM^d$ with finite local complexity. We present a spectral sequence that converges to the $K$-theory of $\Tt$ with $E_2$-page given by a new cohomology that will be called PV in reference…

K-Theory and Homology · Mathematics 2009-06-05 Jean Savinien , Jean Bellissard

Cofiltered diagrams of spectra, also called pro-spectra, have arisen in diverse areas, and to date have been treated in an ad hoc manner. The purpose of this paper is to systematically develop a homotopy theory of pro-spectra and to study…

Algebraic Topology · Mathematics 2014-10-01 J. Daniel Christensen , Daniel C. Isaksen

In this work, we construct a persistent version of the well-known Leray spectral sequence. More precisely, we construct a spectral sequence that computes the persistent cohomology of a space from the persistent cohomology in each open set…

Algebraic Topology · Mathematics 2026-04-07 Edivaldo L. dos Santos , Telmo I. Acosta Vellozo

Let $R$ be a commutative noetherian ring, and $\mathcal{Z}$ a stable under specialization subset of $\Spec(R)$. We introduce a notion of $\mathcal{Z}$-cofiniteness and study its main properties. In the case $\dim(\mathcal{Z})\leq 1$, or…

Commutative Algebra · Mathematics 2018-04-27 Kamran Divaani-Aazar , Hossein Faridian , Massoud Tousi

For any finite group G, we construct a spectral sequence for computing the Bredon cohomology of a G-CW complex X, starting with the cohomology of X^H/\cup_{K>H}X^K with suitable local coefficients, for various H \leq G.

Algebraic Topology · Mathematics 2013-01-08 David Blanc , Debasis Sen

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
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