A localisation theorem for singularity categories of proper dg algebras
arXiv (Cornell University)(2023)
摘要
Given a recollement of three proper dg algebras, e.g. three finite-dimensional algebras, which extends one step downwards, it is shown that there is a short exact sequence of their singularity categories. This allows us to recover and generalise some known results on singularity categories of finite-dimensional algebras.
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关键词
proper dg algebras,singularity categories,localisation
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