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arXiv math/0702119math.RA
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Gelfand-Kirillov维数2的Division algebras

Division algebras of Gelfand-Kirillov dimension two

Jason P. Bell

摘要:

设$A$是GK维小于3的整环上的一个生成的$K$ -代数,$Q(A)$表示$A$的商除代数.证明了若$D$是$Q(A)$的GK维至少为2的可除子代数,则$Q(A)$作为左$D$ -向量空间是有限维的.我们利用这一点来证明,如果$A$是代数闭域$K$上的GK维小于3的有限生成域,则$Q(A)$的任何除子代数$D$要么是$K$的超越度至多为1的有限生成域扩张,要么是$Q(A)$作为左$D$ -向量空间的有限维.

英文摘要:

Let $A$ be a finitely generated $K$-algebra that is a domain of GK dimension less than 3, and let $Q(A)$ denote the quotient division algebra of $A$. We show that if $D$ is a division subalgebra of $Q(A)$ of GK dimension at least 2 then $Q(A)$ is finite dimensional as a left $D$-vector space. We use this to show that if $A$ is a finitely generated domain of GK dimension less than 3 over an algebraically closed field $K$ then any division subalgebra $D$ of $Q(A)$ is either a finitely generated field extension of $K$ of transcendence degree at most one, or $Q(A)$ is finite dimensional as a left $D$-vector space.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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