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2026-01-18 19:31 UTC · math.AC · math.AC

Connections and naïve lifting of DG modules

Saeed Nasseh, Maiko Ono, Yuji Yoshino

In this paper, we generalize the notion of connections, which was introduced by Alain Connes in noncommutative differential geometry, to the differential graded (DG) homological algebra setting. Then, along a DG algebra homomorphism $A \to B$, where $B$ is assumed to be projective as an underlying graded $A$-module, we give necessary and sufficient conditions for a semifree DG $B$-module to be naïvely liftable to $A$ in terms of connections.
arXiv abstractPDF

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