English

Division algebras of Gelfand-Kirillov dimension two

Rings and Algebras 2007-08-21 v2

Abstract

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

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Cite

@article{arxiv.math/0702119,
  title  = {Division algebras of Gelfand-Kirillov dimension two},
  author = {Jason P. Bell},
  journal= {arXiv preprint arXiv:math/0702119},
  year   = {2007}
}

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9 pages