Timeline for About enveloping algebras of direct sums
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
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| May 26, 2018 at 9:45 | comment | added | Duchamp Gérard H. E. | Let us continue this discussion in chat. | |
| May 26, 2018 at 9:42 | comment | added | Thomas Poguntke | If by one-to-one you mean isomorphism, then yes; the Yoneda lemma holds for any category, including $\mathcal C$. | |
| May 26, 2018 at 9:02 | comment | added | Thomas Poguntke | This is the Yoneda lemma: if $\alpha^*$ is a bijective for all $A \in \mathcal C$, then $\alpha$ is an isomorphism in $\mathcal C$. | |
| May 26, 2018 at 8:44 | comment | added | Duchamp Gérard H. E. | @ThomasPogunke Well, thank you (+1), let me check (and possibly clarify). | |
| May 26, 2018 at 8:23 | comment | added | Thomas Poguntke | I've specified the categories, and I hope this makes it clearer. | |
| May 26, 2018 at 8:22 | history | edited | Thomas Poguntke | CC BY-SA 4.0 |
added 251 characters in body
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| May 25, 2018 at 22:39 | history | edited | Duchamp Gérard H. E. | CC BY-SA 4.0 |
added partial
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| May 25, 2018 at 22:37 | comment | added | Duchamp Gérard H. E. | For the hasty reader, I added the assumption "(direct sum, i.e. I suppose that they commute)". | |
| May 25, 2018 at 22:32 | history | edited | Duchamp Gérard H. E. | CC BY-SA 4.0 |
added the assumption "(direct sum, i.e. I suppose that they commute)"
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| May 25, 2018 at 19:46 | history | answered | Thomas Poguntke | CC BY-SA 4.0 |