Timeline for Inversions for parity preserving presentations
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
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| Feb 14 at 3:11 | comment | added | Ben Webster♦ | @YCor Shoot, you're right. Well, there goes that proof method (I had hoped to use this as an intermediate step to a result which is probably still true). | |
| Feb 13 at 8:39 | comment | added | YCor | What about $(0,1,2,3,4,5,6)\mapsto (2,5,0,3,6,1,4)$? It has 9 inversions, 5 with equal parity, 4 with opposite parity. (I understand "inversion" as $(i,j)$ such that $i<j$ and $f(i)>f(j)$ and equal/opposite parity according to whether $j-i$ is even or odd.) | |
| Feb 13 at 2:00 | history | edited | LSpice | CC BY-SA 4.0 |
Capitalise title
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| Feb 12 at 23:02 | history | asked | Ben Webster♦ | CC BY-SA 4.0 |