Timeline for "Natural" pairings between exterior powers of a vector space and its dual
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
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| S Nov 6 at 9:50 | history | suggested | Vladimir Sotirov | CC BY-SA 4.0 |
Fixed typo of taking too many duals.
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| Nov 4 at 20:41 | review | Suggested edits | |||
| S Nov 6 at 9:50 | |||||
| Jun 26, 2011 at 6:10 | history | edited | Torsten Ekedahl | CC BY-SA 3.0 |
Added comment on divided powers
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| Jun 17, 2011 at 12:51 | comment | added | Qiaochu Yuan | @Andrew: the diagonal map is actually from $U$ to $U \oplus U$ and it's the obvious one $u \mapsto u \oplus u$ coming from the universal property. | |
| Jun 17, 2011 at 12:51 | vote | accept | Qiaochu Yuan | ||
| Jun 17, 2011 at 12:50 | history | edited | Qiaochu Yuan | CC BY-SA 3.0 |
deleted 2 characters in body
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| Jun 17, 2011 at 9:19 | comment | added | Andrew Stacey | Can you clarify one point for me? Can you write out the diagonal map $U \to U \otimes U$ on elements for me? I'm used to thinking of $\otimes$ as the coproduct of algebras (whence it has a codiagonal) so I'm having trouble seeing exactly how to write down the diagonal. | |
| Jun 17, 2011 at 8:52 | comment | added | S. Carnahan♦ | The distinction between the exterior and symmetric cases in the last paragraph is very interesting! | |
| Jun 17, 2011 at 7:37 | history | answered | Torsten Ekedahl | CC BY-SA 3.0 |