We construct classes of examples of H−coactions and H−Galois coactions on the Weyl algebra in characteristic p > 0 where H is the function algebra of the additive group of dimension p^2. In particular we show that the main result obtained in a preceeding paper [G. Restuccia and H.-J. Schneider, J. Algebra 261, 229 (2003)] cannot be generalized to non-commutative algebras.
Titolo: | On actions of the additive group on the Weyl algebra |
Autori: | |
Data di pubblicazione: | 2005 |
Rivista: | |
Abstract: | We construct classes of examples of H−coactions and H−Galois coactions on the Weyl algebra in characteristic p > 0 where H is the function algebra of the additive group of dimension p^2. In particular we show that the main result obtained in a preceeding paper [G. Restuccia and H.-J. Schneider, J. Algebra 261, 229 (2003)] cannot be generalized to non-commutative algebras. |
Handle: | http://hdl.handle.net/11570/1447920 |
Appare nelle tipologie: | 14.a.1 Articolo su rivista |
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