The structure of corings with a grouplike element

• Autorzy: Tomasz Brzeziński
• Języki publikacji: EN

Abstrakty

EN

Characteristic properties of corings with a grouplike element are analysed. Associated differential graded rings are studied. A correspondence between categories of comodules and flat connections is established. A generalisation of the Cuntz-Quillen theorem relating existence of connections in a module to projectivity of this module is proven.

Kategorie tematyczne

• 13B02: Extension theory

• Wydawca: Institute of Mathematics Polish Academy of Sciences
• Czasopismo: Banach Center Publications
• Rocznik: 2003
• Tom: 61
• Numer: 1
• Strony: 21-35

Daty

wydano

2003

Twórcy

autor

Tomasz Brzeziński

• Department of Mathematics, University of Wales Swansea, Singleton Park, Swansea SA2 8PP, U.K.

Identyfikatory

DOI

10.4064/bc61-0-2