Timeline for Sign-reversing involution proof of tree inversion generating function at $-1$ equals number of alternating permutations?
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 17, 2019 at 9:28 | vote | accept | Sam Hopkins | ||
| Oct 17, 2019 at 5:45 | answer | added | Ira Gessel | timeline score: 5 | |
| Oct 17, 2019 at 2:49 | history | edited | Sam Hopkins | CC BY-SA 4.0 |
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| Oct 17, 2019 at 2:42 | history | asked | Sam Hopkins | CC BY-SA 4.0 |