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FTF Rings and Frobenius Extensions

✍ Scribed by J. Gómez-Torrecillas; B. Torrecillas


Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
113 KB
Volume
248
Category
Article
ISSN
0021-8693

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Frobenius Extensions and Weak Hopf Algeb
✍ Lars Kadison; Dmitri Nikshych 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 211 KB

We study a symmetric Markov extension of k-algebras N → M, a certain kind of Frobenius extension with conditional expectation that is tracial on the centralizer and dual bases with a separability property. We place a depth two condition on this extension, which is essentially the requirement that th