Twisted algebras of geometric algebras
Canadian mathematical bulletin, Tome 66 (2023) no. 3, pp. 715-730
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A twisting system is one of the major tools to study graded algebras; however, it is often difficult to construct a (nonalgebraic) twisting system if a graded algebra is given by generators and relations. In this paper, we show that a twisted algebra of a geometric algebra is determined by a certain automorphism of its point variety. As an application, we classify twisted algebras of three-dimensional geometric Artin–Schelter regular algebras up to graded algebra isomorphism.
Mots-clés :
Twisting systems, twisted algebras, geometric algebras, AS-regular algebras
Matsuno, Masaki. Twisted algebras of geometric algebras. Canadian mathematical bulletin, Tome 66 (2023) no. 3, pp. 715-730. doi: 10.4153/S0008439522000649
@article{10_4153_S0008439522000649,
author = {Matsuno, Masaki},
title = {Twisted algebras of geometric algebras},
journal = {Canadian mathematical bulletin},
pages = {715--730},
year = {2023},
volume = {66},
number = {3},
doi = {10.4153/S0008439522000649},
url = {http://geodesic.mathdoc.fr/articles/10.4153/S0008439522000649/}
}
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