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Timeline for Ext in Nakayama algebras

Current License: CC BY-SA 4.0

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Oct 28, 2019 at 13:21 vote accept Mare
Oct 25, 2019 at 12:35 history edited Jeremy Rickard CC BY-SA 4.0
The shame of writing "it's" when I meant "its" was spoiling my day.
Oct 24, 2019 at 18:06 comment added Mare Thanks. This looks easier than expected and seems to work for general algebras with X and Y uniserial. Note that it is stated as an open problem to decide when Z is in this case also uniserial in the open problem section (number (3)) in the book of Auslander,Reiten and Smalo.
Oct 24, 2019 at 17:35 history answered Jeremy Rickard CC BY-SA 4.0