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Niels Lauritzen

Two properties of endomorphisms of Weyl algebras

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  • 1508.02499

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DOI

We show that endomorphisms of Weyl algebras over fields of characteristic zero are flat and that birational endomorphisms are automorphisms by reducing to positive characteristic. We also give examples showing that endomorphisms of Weyl algebras are not in general flat over fields of positive characteristic.
OriginalsprogEngelsk
TidsskriftJournal of Algebra
Vol/bind479
ISSN0021-8693
DOI
StatusUdgivet - 2017

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