Timeline for Rook polynomial of quasi-Ferrers board?
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
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| Aug 15, 2021 at 16:01 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Apr 17, 2021 at 15:49 | history | bumped | CommunityBot | This question has answers that may be good or bad; the system has marked it active so that they can be reviewed. | |
| Mar 18, 2021 at 12:29 | comment | added | Sam Hopkins | @MartinRubey: Ah, I stand corrected. Thank you! | |
| Mar 18, 2021 at 10:47 | comment | added | Martin Rubey | @SamHopkins no, sorry, the depicted one is not a moon polyomino. A defining condition for moon polyominoes is that given any two columns, one is contained in the other. Equivalently: any cell can be reached from any other cell by following a path of adjacent cells, such that the path changes direction only once. | |
| Mar 18, 2021 at 8:06 | history | edited | YCor | CC BY-SA 4.0 |
removed capitals from title (the question was bumped anyway)
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| Mar 18, 2021 at 3:21 | comment | added | Sam Hopkins | Sometimes shapes like the ones you have there are called "moon polyominoes." Could be a keyword to google... | |
| Mar 18, 2021 at 3:00 | answer | added | Max Alekseyev | timeline score: 1 | |
| Apr 13, 2017 at 12:58 | history | edited | CommunityBot |
replaced http://mathoverflow.net/ with https://mathoverflow.net/
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| Jan 12, 2015 at 8:24 | history | asked | ruadath | CC BY-SA 3.0 |