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arxiv: math/0104075 · v1 · submitted 2001-04-06 · 🧮 math.KT · math.RA

Hochschild (co)homology of Hopf crossed products

classification 🧮 math.KT math.RA
keywords complexcrossedhochschildhomologyhopfmethodalgebraassociated
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Let A a k-algebra, H a Hopf algebra, E = A#H a general crossed product and M an E-bimodule. We obtain a complex simpler than the canonical one, giving the Hochschild homology of E with coefficients in M. This complex is eqquiped with a natural filtration. We prove that the associated spectral sequence coincides with that obtained by either, the Hochschild-Serre direct method or the Cartan-Leray-Grothendieck method. We also get similar results for the cohomology.

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