Hochschild cohomology of noncommutative planes and quadrics

Hochschild cohomology of noncommutative planes and quadrics
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非交换平面和二次曲面的 Hochschild 上同调

DOI:
10.4171/jncg/338
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发表时间:
2017
影响因子:
0.9
通讯作者:
Pieter Belmans
Pieter Belmans
中科院分区:
数学3区
文献类型:
--
作者:
Pieter Belmans

文献摘要

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我们给出了非对易平面(分别为二次曲面)使用椭圆三元组的自同构群(分别为四元组),分类用于定义非交换平面和二次曲面的Artin-Schelter正则$\mathbb{Z}$-代数。对于椭圆三元组的自同构群的描述是由于Bondal-Polishchuk,椭圆四元组是新的。
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.