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math.KT2006
Derived invariance of Hochschild-Mitchell (co)homology and one-point extensions
Estanislao Herscovich, Andrea Solotar
In this article we prove derived invariance of Hochschild-Mitchell homology and cohomology and we extend to -linear categories a result by Barot and Lenzing concerning derived e…
math.KT2005
Hochschild-Mitchell cohomology and Galois extensions
Estanislao Herscovich, Andrea Solotar
We define -Galois extensions for -linear categories and a Hopf algebra and prove the existence of a Grothendieck spectral sequence for Hochschild-Mitchell cohomology, rel…