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We study thick subcategories of the category of 2-term complexes of projective modules over an associative algebra. We show that those thick subcategories that have enough injectives are in explicit bijection with 2-term silting complexes…

Representation Theory · Mathematics 2023-08-23 Monica Garcia

We study thick subcategories of derived categories of gentle algebras. Any thick subcategory of a derived category of a gentle algebra is generated by a set of string objects or a set of band objects. We show the thick subcategories…

Representation Theory · Mathematics 2025-02-18 Callum Page

In these notes, an introduction to derived categories and derived functors is given. The main focus is the bounded derived category of coherent sheaves on a smooth projective variety.

Algebraic Geometry · Mathematics 2019-08-29 Andreas Hochenegger

We classify the thick subcategories of discrete derived categories. To do this we introduce certain generating sets called arc-collections which correspond to configurations of non-crossing arcs on a geometric model. We show that every…

Representation Theory · Mathematics 2016-08-25 Nathan T Broomhead

Let R be a quotient ring of a commutative coherent regular ring by a finitely generated ideal. Hovey gave a bijection between the set of coherent subcategories of the category of finitely presented R-modules and the set of thick…

Commutative Algebra · Mathematics 2014-02-26 Ryo Takahashi

For any graded commutative noetherian ring, where the grading group is abelian and where commutativity is allowed to hold in a quite general sense, we establish an inclusion-preserving bijection between, on the one hand, the twist-closed…

Category Theory · Mathematics 2012-11-07 Ivo Dell'Ambrogio , Greg Stevenson

We define the projective stable category of a coherent scheme. It is the homotopy category of an abelian model structure on the category of unbounded chain complexes of quasi-coherent sheaves. We study the cofibrant objects of this model…

Algebraic Topology · Mathematics 2019-03-27 Sergio Estrada , James Gillespie

For a noetherian scheme, we introduce its unbounded stable derived category. This leads to a recollement which reflects the passage from the bounded derived category of coherent sheaves to the quotient modulo the subcategory of perfect…

Algebraic Geometry · Mathematics 2007-05-23 Henning Krause

We classify thick subcategories of the $\infty$-categories of perfect modules over ring spectra which arise as functions on even periodic derived stacks satisfying affineness and regularity conditions. For example, we show that the thick…

Algebraic Topology · Mathematics 2015-08-12 Akhil Mathew

A new proof of the classification for tensor ideal thick subcategories of the bounded derived category, and the stable category, of modular representations of a finite group is obtained. The arguments apply more generally to yield a…

Representation Theory · Mathematics 2012-02-01 Jon F. Carlson , Srikanth B. Iyengar

We study thick subcategories defined by modules of complexity one in $\underline{\md}R$, where $R$ is the exterior algebra in $n+1$ indeterminates.

Representation Theory · Mathematics 2019-04-04 Otto Kerner , Dan Zacharia

We examine the localizing subcategories of the derived category of quasi-coherent sheaves on the projective line over a field. We provide a complete classification of all such subcategories which arise as the kernel of a cohomological…

Category Theory · Mathematics 2017-09-07 Henning Krause , Greg Stevenson

The category of coherent sheaves over a noetherian scheme is very important for studying the properties of a given scheme. For noetherian schemes it is a well-known fact that the topology can be fully recovered from the corresponding…

Algebraic Geometry · Mathematics 2025-07-08 Ron Held

The derived category of bounded complexes of coherent sheaves is one of the most important algebraic invariants of a smooth projective variety. An important approach to understand derived categories is to construct full strongly exceptional…

Algebraic Geometry · Mathematics 2010-10-19 L. Costa , S. Di Rocco , R. M. Miro-Roig

We develop in this paper a stable theory for projective complexes, by which we mean to consider a chain complex of finitely generated projective modules as an object of the factor category of the homotopy category modulo split complexes. As…

Commutative Algebra · Mathematics 2022-03-09 Yuji Yoshino

We give an alternate formulation of pseudo-coherence over an arbitrary derived stack X. The full subcategory of pseudo-coherent objects forms a stable sub-infinity-category of the derived category associated to X. Using relative…

Algebraic Geometry · Mathematics 2012-07-06 Parker E. Lowrey

We discuss relations between the motives of two varieties with equivalent derived categories of coherent sheaves.

Algebraic Geometry · Mathematics 2015-06-26 Dmitri Orlov

We classify certain subcategories in quotients of exact categories. In particular, we classify the triangulated and thick subcategories of an algebraic triangulated category, i.e. the stable category of a Frobenius category.

Category Theory · Mathematics 2017-12-15 Emilie Arentz-Hansen

We continue the study of thick triangulated subcategories, started by Valery Lunts and the author in arXiv:2007.02134, and consider thick subcategories in the derived category of coherent sheaves on a weighted projective curve and the…

Representation Theory · Mathematics 2026-03-30 Alexey Elagin

We classify the prelocalizing subcategories of the category of quasi-coherent sheaves on a locally noetherian scheme. In order to give the classification, we introduce the notion of a local filter of subobjects of the structure sheaf. The…

Algebraic Geometry · Mathematics 2016-03-16 Ryo Kanda
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