| Autor: |
Dascalescu, Sorin, Iovanov, Miodrag C., Predut, Sorina |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
Linear Algebra Appl., Vol. 439 (2013), no. 10, 3166--3172 |
| Druh dokumentu: |
Working Paper |
| Popis: |
We discuss when the incidence coalgebra of a locally finite preordered set is right co-Frobenius. As a consequence, we obtain that a structural matrix algebra over a field $k$ is Frobenius if and only if it consists, up to a permutation of rows and columns, of diagonal blocks which are full matrix algebras over $k$. |
| Databáze: |
arXiv |
| Externí odkaz: |
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