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In this paper, we try to realize the unbounded derived category of an abelian category as the homotopy category of a Quillen model structure on the category of unbounded chain complexes. We construct such a model structure based on…

Algebraic Geometry · Mathematics 2007-05-23 Mark Hovey

An important example of a model category is the category of unbounded chain complexes of R-modules, which has as its homotopy category the derived category of the ring R. This example shows that traditional homological algebra is…

Algebraic Topology · Mathematics 2007-05-23 J. Daniel Christensen

An important example of a model category is the category of unbounded chain complexes of R-modules, which has as its homotopy category the derived category of the ring R. This example shows that traditional homological algebra is…

K-Theory and Homology · Mathematics 2013-07-23 J. Daniel Christensen , Mark Hovey

We put a monoidal model category structure on the category of chain complexes of quasi-coherent sheaves over a quasi-compact and semi-separated scheme X. The approach generalizes and simplifies methods used by the author to build monoidal…

Algebraic Topology · Mathematics 2007-05-23 James Gillespie

In the paper "Cotorsion Pairs in C(R-Mod)", the authors construct an abelian model structure on the category of chain complexes Ch(R), where the class of cofibrant objects is given by the class of degreewise projective chain complexes.…

Category Theory · Mathematics 2012-07-03 Marco Pérez

There are many ways to present model categories, each with a different point of view. Here we'd like to treat model categories as a way to build and control resolutions. This an historical approach, as in his original and spectacular…

Algebraic Topology · Mathematics 2007-05-23 Paul G. Goerss , Kristen Schemmerhorn

We generalize the small object argument in order to allow for its application to proper classes of maps (as opposed to sets of maps in Quillen's small object argument). The necessity of such a generalization arose with appearance of several…

Algebraic Topology · Mathematics 2007-05-23 Boris Chorny

A model structure on the category of (small) bigroupoids and pseudofunctors is constructed. In this model structure, every object is cofibrant. In order to keep certain calculations of manageable size, a coherence theorem for bigroupoids…

Category Theory · Mathematics 2018-09-05 Martijn den Besten

This expository article sets forth a self-contained and purely algebraic proof of a deep result of Quillen stating that the category of simplicial commutative algebras over a commutative ring is a model category. This is accomplished by…

Category Theory · Mathematics 2024-05-06 Hossein Faridian

We prove that the projective model structure on the category of unbounded cochain complexes extends naturally to the category of contractions. The proof is completely elementary and we do not assume familiarity with model categories.

Algebraic Topology · Mathematics 2017-03-10 Marco Manetti , Chiara Spagnoli

In this paper, we discuss certain circumstances in which the category of tame functors inherits an abelian category structure with minimal resolutions and a model category structure with minimal cofibrant replacements. We also present a…

Algebraic Topology · Mathematics 2024-03-26 Wojciech Chachólski , Barbara Giunti , Claudia Landi , Francesca Tombari

Let $F:\mathcal{A}\to \mathcal{B}$ be a left adjoint between abelian categories and let $Ch(F)$ be the induced left adjoint on chain complexes. If the abelian categories $\mathcal{A}$ and $\mathcal{B}$ are equipped with sufficiently nice…

Category Theory · Mathematics 2021-05-25 Rene Recktenwald

In this note, we construct a closed model structure on the category of $\mathbb{Z}/2\mathbb{Z}$-graded complexes of projective systems of ind-Banach spaces. When the base field is the fraction field $F$ of a complete discrete valuation ring…

K-Theory and Homology · Mathematics 2024-03-29 Devarshi Mukherjee , Guillermo Cortiñas

We construct a cofibrantly generated Quillen model structure on the category of small differential graded categories. ----- Nous construisons une structure de categorie de modeles de Quillen a engendrement cofibrant sur la categorie des…

K-Theory and Homology · Mathematics 2007-05-23 Goncalo Tabuada

We present a procedure that constructs, in a combinatorial manner, a chain complex of free modules over a polynomial ring in finitely many variables, modulo an ideal generated by quadratic monomials. Applying this procedure to two specific…

Commutative Algebra · Mathematics 2024-08-28 Daniel Bravo

This work concerns finite free complexes over commutative noetherian rings, in particular over group algebras of elementary abelian groups. The main contribution is the construction of complexes such that the total rank of their underlying…

Commutative Algebra · Mathematics 2018-05-11 Srikanth B. Iyengar , Mark E. Walker

We show that the category of algebraically cofibrant objects in a combinatorial and simplicial model category A has a model structure that is left-induced from that on A. In particular it follows that any presentable model category is…

Algebraic Topology · Mathematics 2014-09-09 Michael Ching , Emily Riehl

In this survey, we first present basic facts on A-infinity algebras and modules including their use in describing triangulated categories. Then we describe the Quillen model approach to A-infinity structures following K. Lefevre's thesis.…

Representation Theory · Mathematics 2007-05-23 Bernhard Keller

We put a model structure on the category of categories internal to simplicial sets whose weak equivalences are reflected by the nerve functor to bisimplicial sets with Rezk's model structure. This model structure is shown to be Quillen…

Algebraic Topology · Mathematics 2016-10-12 Geoffroy Horel

We describe an algebraic chain level construction that models the passage from an arbitrary topological space to its free loop space. The input of the construction is a categorical coalgebra, i.e. a curved coalgebra satisfying certain…

Algebraic Topology · Mathematics 2023-11-22 Manuel Rivera
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