Timeline for Vanishing of Hochschild homology of a category
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 31, 2020 at 20:07 | comment | added | pbelmans | If a category is non-zero then the zeroth Hochschild cohomology will be nonzero, as it contains the identity morphism between the diagonals. | |
| Jan 31, 2020 at 18:40 | comment | added | user142700 | Based on your comment regarding Hochschild COhomology detecting nonvanishing in the above examples, am I correct to infer that there are no known examples of non-zero categories with HH_*(A)=HH^*(A)=0? Are there any conjectures regarding whether such examples should exist? | |
| Jan 31, 2020 at 18:30 | vote | accept | user142700 | ||
| Jan 31, 2020 at 18:25 | history | answered | pbelmans | CC BY-SA 4.0 |