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Related papers: Relative differential cohomology

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We provide a suitable axiomatic framework for differential cohomology in the relative case and we deduce the corresponding long exact sequences. We also construct the relative version of the generalized Cheeger-Simons characters and we…

Algebraic Topology · Mathematics 2018-11-22 Fabio Ferrari Ruffino , Juan Carlos Rocha Barriga

Let h be a rationally even cohomology theory and h^ the natural differential refinement, as defined by Hopkins and Singer. We consider the possible definitions of the relative differential cohomology groups, generalizing the analogous…

Algebraic Topology · Mathematics 2016-06-21 Fabio Ferrari Ruffino

There are two natural candidates for the group of relative Cheeger-Simons differential characters. The first directly extends the work of Cheeger and Simons and the second extends the description given by Hopkins and Singer of the…

Algebraic Topology · Mathematics 2007-05-23 Mark Brightwell , Paul Turner

We study Cheeger-Simons differential characters and provide geometric descriptions of the ring structure and of the fiber integration map. The uniqueness of differential cohomology (up to unique natural transformation) is proved by deriving…

Differential Geometry · Mathematics 2013-04-10 Christian Baer , Christian Becker

We compare and contrast various relative cohomology theories that arise from resolutions involving semidualizing modules. We prove a general balance result for relative cohomology over a Cohen-Macaulay ring with a dualizing module, and we…

Commutative Algebra · Mathematics 2007-06-26 Sean Sather-Wagstaff , Tirdad Sharif , Diana White

In the paper [1] (arXiv:math/0408333) the authors discuss two possible definitions of the relative Cheeger-Simons characters, the second one fitting into a long exact sequence. Here we relate that picture to the one of the relative Deligne…

Differential Geometry · Mathematics 2014-01-06 Fabio Ferrari Ruffino

We give some basics about homological algebra of difference representations. We consider both the difference-discrete and the difference-rational case. We define the corresponding cohomology theories and show the existence of spectral…

Algebraic Geometry · Mathematics 2018-11-07 Marcin Chalupnik , Piotr Kowalski

We consider sequences of absolute and relative homology and cohomology groups that arise naturally for a filtered cell complex. We establish algebraic relationships between their persistence modules, and show that they contain equivalent…

Algebraic Topology · Mathematics 2015-05-28 Vin de Silva , Dmitriy Morozov , Mikael Vejdemo-Johansson

Let $f: X \to S$ be a smooth morphism in characteristic 0, and let $(E, \nabla_{X/S})$ be a relative regular connection. We define a cohomology of relative differential characters on $X$ which receives classes of $(E, \nabla_{X/S})$. It…

Algebraic Geometry · Mathematics 2007-05-23 Spencer Bloch , Hélène Esnault

The paper establishes new relationship between cohomology, extensions and automorphisms of quandles. We derive a four term exact sequence relating quandle 1-cocycles, second quandle cohomology and certain group of automorphisms of an…

Geometric Topology · Mathematics 2021-07-27 Valeriy Bardakov , Mahender Singh

The aim of this paper is to study the cohomology theory of Reynolds Lie algebras equipped with derivations and to explore related applications. We begin by introducing the concept of Reynolds LieDer pairs. Subsequently, we construct the…

Rings and Algebras · Mathematics 2025-04-24 Basdouri Imed , Sadraoui Mohamed Amin

In this paper we develop homology and cohomology theories which play the same role for real projective varieties that Lawson homology and morphic cohomology play for projective varieties respectively. They have nice properties such as the…

Algebraic Geometry · Mathematics 2007-07-19 Jyh-Haur Teh

In this paper, we develop the theory of relative log convergent cohomology. We prove the coherence of relative log convergent cohomology in certain case by using the comparison theorem between relative log convergent cohomlogy and relative…

Number Theory · Mathematics 2008-05-21 Atsushi Shiho

We investigate the notion of the C-projective dimension of a module, where C is a semidualizing module. When C=R, this recovers the standard projective dimension. We show that three natural definitions of finite C-projective dimension…

Commutative Algebra · Mathematics 2008-08-05 Ryo Takahashi , Diana White

We define two different versions of the relative De Rham cohomology groups of a diffeological space. Additionally, we study a variant of the Mayer-Vietoris sequence and discuss the existence of a relative cup product. Our approach is…

Algebraic Topology · Mathematics 2024-12-19 Enrique Macías-Virgós , Reihaneh Mehrabi

In Enochs' relative homological dimension theory occur the so called (co)resolvent and (co)proper dimensions which are defined using proper and coproper resolutions constructed by precovers and preenvelopes, respectively. Recently, some…

Category Theory · Mathematics 2020-05-26 Driss Bennis , J. R. Garcia Rozas , Lixin Mao , Luis Oyonarte

Let G be a general (not necessarily finite dimensional compact) Lie group, let g be its Lie algebra, let Cg be the cone on g in the category of differential graded Lie algebras, and consider the functor which assigns to a chain complex V…

Differential Geometry · Mathematics 2008-10-02 Johannes Huebschmann

The notion of a duality between two derived functors as well as an extension theorem for derived functors to larger categories in which they need not be defined is introduced. These ideas are then applied to extend and study the coext…

Rings and Algebras · Mathematics 2014-02-19 Anastasis Kratsios

This paper studies the formal deformations of differential algebra morphisms. As a consequence, we develop a cohomology theory of differential algebra morphisms to interpret the lower degree cohomology groups as formal deformations. Then,…

Rings and Algebras · Mathematics 2024-03-13 Lei Du , Yanhong Bao

In this paper, we will consider derived equivalences for differential graded endomorphism algebras by Keller's approaches. First we construct derived equivalences of differential graded algebras which are endomorphism algebras of the…

Representation Theory · Mathematics 2019-08-13 Shengyong Pan , Zhen Peng , Jie Zhang
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