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Jacobson-Bourbaki Correspondence Theorem for Noncommutative Rings

Jacobson-Bourbaki Correspondence Theorem for Noncommutative Rings
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摘要 In algebra, the Jacobson-Bourbaki theorem is especially useful for generalizations of the Galois theory of finite, normal and separable field extensions. It was obtained by Jacobson for fields and extended to division rings by Jacobson and Cartan who credited the result to unpublished work by Bourbaki. In 2005, the Jacobson-Bourbaki correspondence theorem for commutative rings was formulated by Winter. And this theorem for augmented rings was formulated by Kadison in 2012. In this paper, we prove the Jacobson-Bourbaki theorem for noncommutative rings which is finitely generated over their centers. We establish a bijective correspondence between the set of subdivisions which are right finite codimension in A and the set of Galois rings of the additive endomorphisms End A of A which is finitely generated over its center. In algebra, the Jacobson-Bourbaki theorem is especially useful for generalizations of the Galois theory of finite, normal and separable field extensions. It was obtained by Jacobson for fields and extended to division rings by Jacobson and Cartan who credited the result to unpublished work by Bourbaki. In 2005, the Jacobson-Bourbaki correspondence theorem for commutative rings was formulated by Winter. And this theorem for augmented rings was formulated by Kadison in 2012. In this paper, we prove the Jacobson-Bourbaki theorem for noncommutative rings which is finitely generated over their centers. We establish a bijective correspondence between the set of subdivisions which are right finite codimension in A and the set of Galois rings of the additive endomorphisms End A of A which is finitely generated over its center.
作者 FENG Jiangchao SHEN Ran ZHANG Jiangang 冯江超;申冉;张建刚(College of Science,Donghua University;Department of Mathematics,Shanghai Normal University)
出处 《Journal of Donghua University(English Edition)》 EI CAS 2019年第1期23-26,共4页 东华大学学报(英文版)
基金 National Natural Science Foundation of China(No.11671056)
关键词 NONCOMMUTATIVE RINGS GALOIS RINGS simple module noncommutative rings Galois rings simple module
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