English

Galois correspondence for group-type partial actions of groupoids

Rings and Algebras 2021-08-04 v1

Abstract

Let G\operatorname{G} be a finite groupoid and α=(Sg,αg)gG\alpha=(S_g,\alpha_g)_{g\in \operatorname{G}} a unital partial action of group-type of G\operatorname{G} on a commutative ring S=yG0SyS=\oplus_{y\in\operatorname{G}_0}S_y. We shall prove a Galois correspondence between a class of wide subgroupoids of G\operatorname{G} and a class of subrings of SS. We recover known results for global groupoid actions and we give several examples to illustrate the correspondence.

Keywords

Cite

@article{arxiv.2108.01180,
  title  = {Galois correspondence for group-type partial actions of groupoids},
  author = {Dirceu Bagio and Alveri Sant'Ana and Thaísa Tamusiunas},
  journal= {arXiv preprint arXiv:2108.01180},
  year   = {2021}
}

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22 pages