Ozone groups of Artin--Schelter regular algebras satisfying a polynomial identity

Fuente: arXiv
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Main Authors: Chan, Kenneth, Gaddis, Jason, Won, Robert, Zhang, James J.
Format: Preprint
Published: 2023
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_version_ 1866910639607250944
author Chan, Kenneth
Gaddis, Jason
Won, Robert
Zhang, James J.
author_facet Chan, Kenneth
Gaddis, Jason
Won, Robert
Zhang, James J.
contents We study the ozone group of noetherian Artin--Schelter regular algebras satisfying a polynomial identity (or PI for short). The ozone group was shown in previous work by the authors to be an important invariant in the study of PI skew polynomial rings and their centers. In this paper, we show that skew polynomial rings are in fact characterized as those algebras with maximal rank ozone groups. We also classify those with trivial ozone groups, which must necessarily be Calabi--Yau. This class includes most three-dimensional PI Sklyanin algebras. Further examples and applications are given, including applications to the Zariski Cancellation Problem.
format Preprint
id arxiv_https___arxiv_org_abs_2312_13014
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Ozone groups of Artin--Schelter regular algebras satisfying a polynomial identity
Chan, Kenneth
Gaddis, Jason
Won, Robert
Zhang, James J.
Rings and Algebras
We study the ozone group of noetherian Artin--Schelter regular algebras satisfying a polynomial identity (or PI for short). The ozone group was shown in previous work by the authors to be an important invariant in the study of PI skew polynomial rings and their centers. In this paper, we show that skew polynomial rings are in fact characterized as those algebras with maximal rank ozone groups. We also classify those with trivial ozone groups, which must necessarily be Calabi--Yau. This class includes most three-dimensional PI Sklyanin algebras. Further examples and applications are given, including applications to the Zariski Cancellation Problem.
title Ozone groups of Artin--Schelter regular algebras satisfying a polynomial identity
topic Rings and Algebras
url https://arxiv.org/abs/2312.13014