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- W3043303967 abstract "Bagio and Paques [Partial groupoid actions: globalization, Morita theory and Galois theory, Comm. Algebra 40 (2012) 3658–3678] developed a Galois theory for unital partial actions by finite groupoids. The aim of this note is to show that this is actually a special case of the Galois theory for corings, as introduced by Brzeziński [The structure of corings, Induction functors, Maschke-type theorem, and Frobenius and Galois properties, Algebr. Represent. Theory 5 (2002) 389–410]. To this end, we associate a coring to a unital partial action of a finite groupoid on an algebra [Formula: see text], and show that this coring is Galois if and only if [Formula: see text] is an [Formula: see text]-partial Galois extension of its coinvariants." @default.
- W3043303967 created "2020-07-23" @default.
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- W3043303967 date "2020-08-27" @default.
- W3043303967 modified "2023-09-25" @default.
- W3043303967 title "Galois corings and groupoids acting partially on algebras" @default.
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- W3043303967 doi "https://doi.org/10.1142/s021949882140003x" @default.
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