A generalization of Dickson’s commutative division algebras

A generalization of Dickson’s commutative division algebras
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迪克森交换除代数的推广

DOI:
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发表时间:
2019
影响因子:
0.7
通讯作者:
D. Thompson
D. Thompson
中科院分区:
数学3区
文献类型:
--
作者:
D. Thompson

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Dickson交换半域是一类重要的有限可除代数。我们推广迪克森的建设在任何基础领域的双重不仅有限域扩展(这将对应于经典的设置),但也中心单代数。后一种情况产生的除代数不再是交换的,也不是结合的。我们计算它们的自同构。
Abstract Dickson’s commutative semifields are an important class of finite division algebras. We generalize Dickson’s construction over any base field by doubling not just finite field extensions (which would correspond to the classical setup), but also central simple algebras. The latter case yields division algebras which are no longer commutative nor associative. We compute their automorphisms.