The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Let k be a field and H4 be Sweedler's 4-dimensional algebra over k. It is well known that H4 has a family of triangular structures Rt indexed by the ground field k and each triangular structure Rt makes the H4-module category MH4 a braided monoidal category, denoted MRtH4. In this paper, we study the Azumaya algebras in the categories MRtH4. We obtain the structure theorems for Azumaya algebras in...
In this paper, we classify four-dimensional Yetter–Drinfeld module algebras over Sweedler's 4-dimensional Hopf algebra H4. All H4-Azumaya algebras of dimension 4 have been given. In particular, all Yetter–Drinfeld H4-module algebra structures on the matrix algebra M2(k) are classified.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.