Extensions of modules over Weyl algebras
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- by S. C. Coutinho
- Trans. Amer. Math. Soc. 349 (1997), 3343-3352
- DOI: https://doi.org/10.1090/S0002-9947-97-01901-6
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Abstract:
In this paper we calculate some $\mathrm {Ext}$ groups of singular modules over the complex Weyl algebra $A_{n}$. In particular we determine conditions under which $\mathrm {Ext}$ is an infinite dimensional vector space when $n =2$ or $3$.References
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Bibliographic Information
- S. C. Coutinho
- Affiliation: Instituto de Matemática, Universidade Federal do Rio de Janeiro, P.O. Box 68530, 21945-970, Rio de Janeiro, RJ, Brazil
- Email: collier@impa.br
- Received by editor(s): February 22, 1996
- © Copyright 1997 American Mathematical Society
- Journal: Trans. Amer. Math. Soc. 349 (1997), 3343-3352
- MSC (1991): Primary 16S32; Secondary 16E30, 13N10
- DOI: https://doi.org/10.1090/S0002-9947-97-01901-6
- MathSciNet review: 1407699