Comatrix Corings an Invertible Bimodules

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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].
10 pages

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Rings and Algebras, 16W30, 13B02

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http://salesiana.dossiersoluciones.com/handle/123456789/73754

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0501032
 http://arxiv.org/abs/math/0501032

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arXiv