Non-free iterative differential modules

In [7] we established a Picard-Vessiot theory over differentially simple rings which may not be fields. Differential modules over such rings were proven to be locally free but don't have to be free as modules. In this article, we give a family of examples of non-free differential modules, and c...

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1. Verfasser: Maurischat, Andreas (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 2017-02-22
In: ACM Communications in computer algebra
Year: 2016, Jahrgang: 50, Heft: 4, Pages: 126-135
ISSN:1932-2240
DOI:10.1145/3055282.3055283
Online-Zugang:Resolving-System, Volltext: http://dx.doi.org/10.1145/3055282.3055283
Verlag, Volltext: https://dl.acm.org/citation.cfm?id=3055283
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Verfasserangaben:Andreas Maurischat
Beschreibung
Zusammenfassung:In [7] we established a Picard-Vessiot theory over differentially simple rings which may not be fields. Differential modules over such rings were proven to be locally free but don't have to be free as modules. In this article, we give a family of examples of non-free differential modules, and compute Picard-Vessiot rings as well as Galois groups for them.
Beschreibung:Gesehen am 20.02.2019
Beschreibung:Online Resource
ISSN:1932-2240
DOI:10.1145/3055282.3055283