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Ext-symmetry over quantum complete intersections

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Abstract.

We show that symmetry in the vanishing of cohomology holds for graded modules over quantum complete intersections. Moreover, symmetry holds for all modules if the algebra is symmetric.

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Authors and Affiliations

  1. Institutt for matematiske fag, NTNU, N-7491, Trondheim, Norway

    Petter Andreas Bergh

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  1. Petter Andreas Bergh
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Correspondence to Petter Andreas Bergh.

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The author was supported by NFR Storforsk grant no. 167130.

Received: 1 December 2008

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Bergh, P.A. Ext-symmetry over quantum complete intersections. Arch. Math. 92, 566–573 (2009). https://doi.org/10.1007/s00013-009-3128-z

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  • DOI: https://doi.org/10.1007/s00013-009-3128-z

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