Timeline for Product of subsets of a unipotent group
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
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| Apr 2, 2021 at 13:32 | comment | added | Vladimir47 | Great answer! Thank you. | |
| Apr 2, 2021 at 6:04 | history | edited | YCor |
edited tags
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| Apr 2, 2021 at 6:04 | comment | added | YCor | Both are false even in the additive group $\mathbf{C}^2$. Take $X$ the hyperbola $\{(x,y):xy=1\}$ and $Y$ the closed subgroup $\{(x,y):y=0\}$. Then $X+Y=\{(x,y):y\neq 0\}$ is not closed. | |
| Apr 2, 2021 at 5:55 | history | edited | YCor | CC BY-SA 4.0 |
formatting, added tag
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| Apr 2, 2021 at 5:48 | history | asked | Vladimir47 | CC BY-SA 4.0 |