2005/01/03 by L. El Kaoutit, Kaoutit, L. El, J. Gomez-Torrecillas +1
Mathematics · #13B02 #16W30 #FOS: Mathematics #Rings and Algebras (math.RA) #math.RA #msc:13B02 #msc:16W30
paper · pdf · doi:10.48550/arxiv.math/0501032
10 pages
arxiv created 2005/01/03 · arxiv updated 2009/12/01
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].