8 citations · 37 across the 23 of their papers we have counts for
4 papers · 2 filters
Similarity, Codepth Two Bicomodules and QF Bimodules
F. Castano Iglesias, Lars Kadison
For any k-coalgebra C it is shown that similar quasi-finite C-comodules have strongly equivalent coendomorphism coalgebras; (the converse is in general not true). As an application…
Simplicial Hochschild cochains as an Amitsur complex
Lars Kadison
It is shown that the cochain complex of relative Hochschild A-valued cochains of a depth two extension A | B under cup product is isomorphic as a differential graded algebra with t…
Depth three towers and Jacobson-Bourbaki correspondence
Lars Kadison
We introduce a notion of depth three tower of three rings C < B < A as a useful generalization of depth two ring extension. If A = End B_C and B | C is a Frobenius extension, this…
Depth three towers of rings and groups
Lars Kadison
Depth three and finite depth are notions known for subfactors via diagrams and Frobenius extensions of rings via centralizers in endomorphism towers. From the point of view of dept…