Timeline for Simultaneous coset spaces [closed]
Current License: CC BY-SA 3.0
7 events
when toggle format | what | by | license | comment | |
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Dec 30, 2015 at 10:55 | review | Reopen votes | |||
Dec 31, 2015 at 9:08 | |||||
Dec 23, 2015 at 1:45 | comment | added | Todd Trimble | Meta discussion: meta.mathoverflow.net/questions/2658/research-level-mathematics | |
Dec 22, 2015 at 10:11 | history | closed |
YCor HJRW Alexey Ustinov Daniel Moskovich Wolfgang |
Not suitable for this site | |
Dec 21, 2015 at 22:51 | review | Close votes | |||
Dec 22, 2015 at 10:11 | |||||
Dec 21, 2015 at 22:35 | comment | added | YCor | A necessary and sufficient condition is that $X,Y$ are both non-empty and that there is a set $Z$ such that $X$ and $Y\times Z$ are in bijection. In other words, this is true iff $X,Y$ are non-empty, $|X|\ge |Y|$, and, if $X,Y$ are both finite, $|Y|$ divides $|X|$. This does not seem to be of research level. | |
Dec 21, 2015 at 22:25 | review | First posts | |||
Dec 21, 2015 at 22:26 | |||||
Dec 21, 2015 at 22:23 | history | asked | octopus | CC BY-SA 3.0 |