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- W4309395217 abstract "In this paper we investigate homologically finite-dimensional objects in the derived category of a given small dg-enhanced triangulated category. Using these we define reflexivity, hfd-closedness, and the Gorenstein property for triangulated categories, and discuss crepant categorical contractions. We illustrate the introduced notions on examples of categories of geometric and algebraic origin and provide geometric applications. In particular, we apply our results to prove a bijection between semiorthogonal decompositions of the derived category of a singular variety and the derived category of its smoothing with support on the central fiber." @default.
- W4309395217 created "2022-11-26" @default.
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- W4309395217 date "2022-11-17" @default.
- W4309395217 modified "2023-09-26" @default.
- W4309395217 title "Homologically finite-dimensional objects in triangulated categories" @default.
- W4309395217 doi "https://doi.org/10.48550/arxiv.2211.09418" @default.
- W4309395217 hasPublicationYear "2022" @default.
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