Comatrix Corings an Invertible Bimodules

Details Comatrix Corings an Invertible Bimodules Comatrix Corings an Invertible Bimodules

2005-01-03

arxiv.org/abs/math/0501032v1

Mathematics

Rings and Algebras

10 pages

Scientific paper

We extend Masuoka's Theorem [11] concerning the isomorphism between the group
of invertible bimodules in a non-commutative ring extension and the group of
automorphisms of the associated Sweedler's canonical coring, to the class of
finite comatrix corings introduced in [6].

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