Forskning ved Københavns Universitet - Københavns Universitet

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Commutativity and ideals in category crossed products

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  • Per Johan Öinert
  • Patrik Lundström
In order to simultaneously generalize matrix rings and group graded crossed products, we introduce category crossed products. For such algebras we describe the centre and the commutant of the coefficient ring. We also investigate the connection between on the one hand maximal commutativity of the coefficient ring and on the other hand nonemptiness of intersections of the coefficient ring by nonzero two-sided ideals.
OriginalsprogEngelsk
TidsskriftProceedings of the Estonian Academy of Sciences
Vol/bind59
Udgave nummer4
Sider (fra-til)338-346
ISSN1736-6046
DOI
StatusUdgivet - 20 dec. 2010

ID: 32440682