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Hochschild cohomology of noncommutative planes and quadrics. (arXiv:1705.06098v1 [math.AG])
来源于:arXiv
We give a description of the Hochschild cohomology for noncommutative planes
(resp. quadrics) using the automorphism groups of the elliptic triples (resp.
quadruples) that classify the Artin-Schelter regular $\mathbb{Z}$-algebras used
to define noncommutative planes and quadrics. For elliptic triples the
description of the automorphism groups is due to Bondal-Polishchuk, for
elliptic quadruples it is new. 查看全文>>