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Extension dimensions: derived equivalences and stable equivalences

Published 11 Oct 2022 in math.RT, math.CT, and math.RA | (2210.05120v1)

Abstract: We show that the difference of the extension dimensions of two derived equivalent algebras is bounded above by the minimal length of a tilting complex associated with a derived equivalence, and that the extension dimension is an invariant under the stable equivalence. In addition, we provide two sufficient conditions such that the extension dimension is an invariant under particular derived equivalences.

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Authors (2)

  1. Jinbi Zhang 
  2. Junling Zheng 

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