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Title
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Homological smoothness and deformations of generalized Weyl algebras
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Author
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Abstract
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| It is an immediate conclusion from Bavula's papers [1], [2] that if a generalized Weyl algebra A = k[z; lambda, eta, phi(z)] is homologically smooth, then the polynomial phi(z) has no multiple roots. We prove in this paper that the converse is also true. Moreover, formal deformations of A are studied when k is of characteristic zero. |
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Language
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English
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Source (journal)
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Israel journal of mathematics. - Jerusalem, 1963, currens
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Publication
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Jerusalem
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Weizmann Science Press
,
2015
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ISSN
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0021-2172
[print]
1565-8511
[online]
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DOI
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10.1007/S11856-015-1242-0
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Volume/pages
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209
:2
(2015)
, p. 949-992
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ISI
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000364225700016
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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