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Admissible subcategories in derived categories of moduli of vector bundles on curves

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We show that the Poincar\'e bundle gives a fully faithful embedding from the derived category of a curve of sufficiently high genus into the derived category of its moduli space… Click to show full abstract

We show that the Poincar\'e bundle gives a fully faithful embedding from the derived category of a curve of sufficiently high genus into the derived category of its moduli space of bundles of rank $r$ with fixed determinant of degree 1. Moreover we show that a twist of the embedding, together with 2 exceptional line bundles, gives the start of a semi-orthogonal decomposition. This generalises results of Narasimhan and Fonarev-Kuznetsov, who embedded the derived category of a single copy of the curve, for rank 2.

Keywords: derived category; admissible subcategories; categories moduli; moduli vector; subcategories derived; derived categories

Journal Title: Advances in Mathematics
Year Published: 2019

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