Articles with "singularity categories" as a keyword



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Relative singularity categories with respect to gorenstein flat modules

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Published in 2017 at "Acta Mathematica Sinica, English Series"

DOI: 10.1007/s10114-017-6566-8

Abstract: Let R be a right coherent ring and Db(R-Mod) the bounded derived category of left R-modules. Denote by $${D^b}{\left( {R - Mod} \right)_{\widehat {\left[ {GF,C} \right]}}}$$Db(R−Mod)[GF,C]^ the subcategory of Db(R-Mod) consisting of all complexes with… read more here.

Keywords: gorenstein flat; category; mod; left modules ... See more keywords
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Singularity categories via the derived quotient

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Published in 2021 at "Advances in Mathematics"

DOI: 10.1016/j.aim.2021.107631

Abstract: Abstract Given a noncommutative partial resolution A = End R ( R ⊕ M ) of a Gorenstein singularity R, we show that the relative singularity category Δ R ( A ) of Kalck–Yang is… read more here.

Keywords: derived quotient; categories via; via derived; singularity categories ... See more keywords
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Comparisons between singularity categories and relative stable categories of finite groups

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Published in 2019 at "Journal of Pure and Applied Algebra"

DOI: 10.1016/j.jpaa.2018.05.008

Abstract: We consider the relationship between the relative stable category of Benson, Iyengar, and Krause and the usual singularity category for group algebras with coefficients in a commutative noetherian ring. When the coefficient ring is self-injective… read more here.

Keywords: relative stable; categories relative; singularity; stable categories ... See more keywords