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$T$-structures from categorical actions

By Clemens Koppensteiner

Also appears in collection : Symplectic representation theory / Théorie symplectique des représentations

$T$-structures on derived categories of coherent sheaves are an important tool to encode both representation-theoretic and geometric information. Unfortunately there are only a limited amount of tools available for the constructions of such $t$-structures. We show how certain geometric/categorical quantum affine algebra actions naturally induce $t$-structures on the categories underlying the action. In particular we recover the categories of exotic sheaves of Bezrukavnikov and Mirkovic. This is joint work with Sabin Cautis.

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  • DOI 10.24350/CIRM.V.19510903
  • Cite this video Koppensteiner, Clemens (01/04/2019). $T$-structures from categorical actions. CIRM. Audiovisual resource. DOI: 10.24350/CIRM.V.19510903
  • URL https://dx.doi.org/10.24350/CIRM.V.19510903

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