Galois coverings of pointed coalgebras

Details Galois coverings of pointed coalgebras Galois coverings of pointed coalgebras

2010-06-05

arxiv.org/abs/1006.1070v1

Mathematics

Representation Theory

Scientific paper

We introduce the concept of a Galois covering of a pointed coalgebra. The theory developed shows that Galois coverings of pointed coalgebras can be concretely expressed by smash coproducts using the coaction of the automorphism group of the covering. Thus the theory of Galois coverings is seen to be equivalent to group gradings of coalgebras. An advantageous feature of the coalgebra theory is that neither the grading group nor the quiver is assumed finite in order to obtain a smash product coalgebra.

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