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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

For an exact category having enough projective objects, we establish a bijection between thick subcategories containing the projective objects and thick subcategories of the stable derived category. Using this bijection we classify thick…

Category Theory · Mathematics 2015-01-14 Henning Krause , Greg Stevenson

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 classify t-structures and thick subcategories in discrete cluster categories $\mathcal{C}(\mathcal{Z})$ of Dynkin type $A$, and show that the set of all t-structures on $\mathcal{C}(\mathcal{Z})$ is a lattice under inclusion of aisles,…

Representation Theory · Mathematics 2022-12-29 Sira Gratz , Alexandra Zvonareva

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 classify the thick subcategories of an algebraic triangulated standard category with finitely many indecomposable objects.

Category Theory · Mathematics 2010-10-04 Claudia Köhler

We classify thick subcategories $\mathcal T \subset D^b(\mathrm{coh}\,C)$ for smooth projective curves $C$ over an algebraically closed field.

Algebraic Geometry · Mathematics 2020-12-08 Alexey Elagin , Valery A. Lunts

We study aisles in the derived category of a hereditary abelian category. Given an aisle, we associate a sequence of subcategories of the abelian category by considering the different homologies of the aisle. We then obtain a sequence,…

Category Theory · Mathematics 2012-02-23 Donald Stanley , Adam-Christiaan van Roosmalen

We give a combinatorial model for the bounded derived category of graded modules over the dual numbers in terms of arcs on the integer line with a point at infinity. Using this model we describe the lattice of thick subcategories of the…

Representation Theory · Mathematics 2016-11-08 Sira Gratz , Greg Stevenson

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 characterize those finite groups for which the bounded derived category of finite dimensional representations over an algebraically closed field of characteristic $p$ has distributive lattice of thick subcategories: they are precisely…

Representation Theory · Mathematics 2026-05-01 Sira Gratz , Greg Stevenson

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 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

We show how derived categories build bridges across the current mathematical mainstream, linking geometric and algebraic, commutative and noncommutative, local and global banks. Arches in these bridges are pieces of semiorthogonal…

Algebraic Geometry · Mathematics 2009-11-24 Alexei Bondal , Dmitri Orlov

Following ideas of Lawvere and Linton we prove that classical varieties are precisely the exact categories with a varietal generator. This means a strong generator which is abstractly finite and regularly projective. An analogous…

Category Theory · Mathematics 2024-02-23 Jiri Adamek

Let $R$ be a commutative ring. A full additive subcategory $\C$ of $R$-modules is triangulated if whenever two terms of a short exact sequence belong to $\C$, then so does the third term. In this note we give a classification of…

Commutative Algebra · Mathematics 2009-12-03 Sunil K. Chebolu

We study the categories of discrete modules for topological rings arising as the rings of operations in various kinds of topological K-theory. We prove that for these rings the discrete modules coincide with those modules which are locally…

Algebraic Topology · Mathematics 2010-10-25 A. J. Hignett , Sarah Whitehouse

Classification problems of subcategories have been deeply considered so far. In this paper, we discuss classifying dense (co)resolving subcategories of exact categories via their Grothendieck groups. This study is motivated by the…

Representation Theory · Mathematics 2016-11-08 Hiroki Matsui

We introduce the notion of a definable category--a category equivalent to a full subcategory of a locally finitely presentable category that is closed under products, directed colimits and pure subobjects. Definable subcategories are…

Category Theory · Mathematics 2016-12-13 Amit Kuber , Jiří Rosický

We study the derived categories of small categories over commutative noetherian rings. Our main result is a parametrization of the localizing subcategories in terms of the spectrum of the ring and the localizing subcategories over residue…

Representation Theory · Mathematics 2016-06-22 Benjamin Antieau , Greg Stevenson
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