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Spectral sequences are a common tool to compute cohomology spaces, but higher structure is often lost on the way. In this article we exhibit a strategy to retain the higher structure on the cohomology, which works in case the chain complex…

Algebraic Topology · Mathematics 2025-09-01 Jasper van de Kreeke

The principal aim of this paper is to construct torsion cohomology classes in the initial terms of a spectral sequence computing the cohomology of a Kottwitz-Harris-Taylor Shimura variety. Beside we produce some global congruences between…

Number Theory · Mathematics 2015-12-08 Pascal Boyer

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

Through the theory of Lie bi-algebroids and generalized complex structures, one could define a cohomology theory naturally associated to a holomorphic Poisson structure. It is known that it is the hypercohomology of a bi-complex such that…

Differential Geometry · Mathematics 2016-11-29 Yat Sun Poon

We study some spectral sequences associated with a locally free $\mathcal O_X$-module $\mathcal A$ which has a Lie algebroid structure. Here $X$ is either a complex manifold or a regular scheme over an algebraically closed field $k$. One…

K-Theory and Homology · Mathematics 2021-11-23 U. Bruzzo , V. N. Rubtsov

We introduce several families of filtrations on the space of vector bundles over a smooth projective variety. These filtrations are defined using the large k asymptotics of the kernel of the Dolbeault Dirac operator on a bundle twisted by…

Differential Geometry · Mathematics 2015-02-04 Benoit Charbonneau , Mark Stern

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

We set up a Grothendieck spectral sequence which generalizes the Lyndon--Hochschild--Serre spectral sequence for a group extension $K\mono G\epi Q$ by allowing the normal subgroup $K$ to be replaced by a subgroup, or family of subgroups…

Group Theory · Mathematics 2007-05-23 P. H. Kropholler

We describe a symmetry breaking construction in coarse geometry which allows to obtain information about equivariant coarse homology classes by restriction to smaller groups and spaces. In the case of equivariant coarse $K$-homology theory…

Algebraic Topology · Mathematics 2025-04-01 Ulrich Bunke , Matthias Ludewig

We present some fundamental facts about a class of generalized K\"ahler structures defined by invariant complex structures on compact Lie groups. The main computational tool is the BH-to-GK spectral sequences that relate the bi-Hermitian…

Differential Geometry · Mathematics 2015-01-06 Shengda Hu

We show that, for a finite spectrum $X$, Spanier-Whitehead duality induces an isomorphism between the cohomological and homological Atiyah-Hirzebruch spectral sequences. As an application, it follows that Poincar\'e duality for a Poincar\'e…

Algebraic Topology · Mathematics 2026-04-14 Maximilian David Hans

We construct an analogue of the Lyndon-Hochschild-Serre spectral sequence in the context of polynomial cohomology, for group extensions. If G is an extension of Q by H, then the spectral sequence converges to the polynomial cohomology of G.…

K-Theory and Homology · Mathematics 2012-12-12 Bobby W. Ramsey

We establish a blow-up formula for Hodge cohomology of locally free sheaves on smooth proper varieties over an algebraically closed field of positive characteristic. For this, we introduce a notion of relative Hodge sheaves and study their…

Algebraic Geometry · Mathematics 2022-03-01 Sheng Rao , Song Yang , Xiangdong Yang , Xun Yu

In this article we construct what we call a higher spectral sequence for any chain complex (or topological space) that is filtered in $n$ compatible ways. For this we extend the previous spectral system construction of the author, and we…

Algebraic Topology · Mathematics 2021-07-07 Benjamin Matschke

The Hodge-Tate spectral sequence for a proper smooth variety over a p-adic field provides a framework for us to revisit Faltings' approach to p-adic Hodge theory and to fill in many details. The spectral sequence is obtained from the…

Algebraic Geometry · Mathematics 2015-09-14 Ahmed Abbes , Michel Gros

For the field $\mathbb{K} = \mathbb{R}$ or $\mathbb{C}$, and an integrable distribution $F \subseteq T_M \otimes_{\mathbb{R}} \mathbb{K}$ on a smooth manifold $M$, we study the Hochschild cohomology of the dg manifold $(F[1],d_F)$ and…

Differential Geometry · Mathematics 2022-09-28 Zhuo Chen , Maosong Xiang , Ping Xu

In order to treat multiplicative phenomena in twisted (co)homology, we introduce a new point-set level framework for parametrized homotopy theory. We provide a convolution smash product that descends to the corresponding…

Algebraic Topology · Mathematics 2020-03-20 Fabian Hebestreit , Steffen Sagave , Christian Schlichtkrull

Deformations of compact Riemann surfaces are considered using a \v{C}ech cohomology sliding overlaps approach. Cocycles are calculated for conformal cutting and regluing deformations at zeros of Abelian differentials. A second order…

Geometric Topology · Mathematics 2015-09-15 Scott A. Wolpert

We introduce the notions of Koszul $N$-complex, $\check{\mathrm{C}}$ech $N$-complex and telescope $N$-complex, explicit derived torsion and derived completion functors in the derived category $\mathbf{D}_N(R)$ of $N$-complexes using the…

Commutative Algebra · Mathematics 2020-06-24 Xiaoyan Yang

We show that in the category of complex algebraic varieties, the Eilenberg--Moore spectral sequence can be endowed with a weight filtration. This implies that it degenerates if all involved spaces have pure cohomology. As application, we…

Algebraic Geometry · Mathematics 2007-05-23 Matthias Franz , Andrzej Weber