8 citations · 36 across the 21 of their papers we have counts for
Showing 2005 · math.QAShow all
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math.QA2005
Pseudo-Galois Extensions and Hopf Algebroids
Lars Kadison
A pseudo-Galois extension is shown to be a depth two extension. Studying its left bialgebroid, we construct an enveloping Hopf algebroid for the semi-direct product of groups, or m…
math.QA2005★ 8 cited
The Endomorphism Ring Theorem for Galois and D2 extensions
Lars Kadison
Let be the left bialgebroid $\End {}_BA_B$ over the centralizer of a right D2 algebra extension , which is to say that its tensor-square is isomorphic as --bi…
math.QA2005★ 2 cited
Galois theory for bialgebroids, depth two and normal Hopf subalgebras
Lars Kadison
We reduce certain proofs in math.RA/0108067, math.RA/0408155, and math.QA/0409589 to depth two quasibases from one side only, a minimalistic approach which leads to a characterizat…