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arXiv 0810.3054math.RA
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有限Gelfand-Kirillov维数域上的中心化子

Centralizers in Domains of Finite Gelfand-Kirillov Dimension

Jason P. Bell

摘要:

我们研究域中元素的中心化子。本文推广了作者和Small的一个结果,证明了如果$A$是一个N-生成的Noether整环,且$a\in A$在$A$的扩张中心上不是代数的,则$a$的中心化子的Gelfand-Kirillov维数至多比$A$的Gelfand-Kirillov维数小1.当$A$是复数上GK维为3的广义生成的Noether域时,证明了在$A$的扩张中心上非代数的元素a $A$的中心化子满足多项式恒等式.

英文摘要:

We study centralizers of elements in domains. We generalize a result of the author and Small, showing that if $A$ is a finitely generated noetherian domain and $a\in A$ is not algebraic over the extended centre of $A$, then the centralizer of $a$ has Gelfand-Kirillov dimension at most one less than the Gelfand-Kirillov dimension of $A$. In the case that $A$ is a finitely generated noetherian domain of GK dimension 3 over the complex numbers, we show that the centralizer of an element a $A$ that is not algebraic over the extended centre of $A$ satisfies a polynomial identity.

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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