Timeline for Selfextensions for modules of commutative Frobenius algebras
Current License: CC BY-SA 4.0
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Aug 28, 2019 at 8:56 | comment | added | Mare | Oh,right. This is the same proof that I know as for $i=1$ but I forgot about it. It also works for general local cocommutative (finite dimensional) Hopf algebras. Also commutative seems to be not needed. | |
Aug 28, 2019 at 8:16 | history | answered | Jeremy Rickard | CC BY-SA 4.0 |