Timeline for Showing non-expansion for $x\rightarrow x+1, x\rightarrow 2x.$
Current License: CC BY-SA 3.0
10 events
| when toggle format | what | by | license | comment | |
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| Oct 22, 2012 at 8:53 | history | edited | H A Helfgott | CC BY-SA 3.0 |
added 14 characters in body
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| Oct 22, 2012 at 8:52 | comment | added | H A Helfgott | Yes and yes, I think. | |
| Oct 21, 2012 at 17:03 | comment | added | Seva | You say "We show that ... $1\ll |B|$" but actually do not prove this - is this that easy? "Addition $k$ times" should be "Addition $\lambda$ times", and $O_\lambda(1)$ should be $O_{\lambda,n}(1)$, correct? | |
| Oct 20, 2012 at 13:28 | history | edited | H A Helfgott | CC BY-SA 3.0 |
added 21 characters in body
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| Oct 19, 2012 at 18:54 | comment | added | Seva | Seems that some of the $2$s should actually be $\lambda$s, do they? | |
| Oct 19, 2012 at 13:54 | comment | added | H A Helfgott | Ah, the delights of dialectal differences within mathematics. $f\ll g$ means $f=O(g)$. | |
| Oct 19, 2012 at 13:30 | comment | added | David E Speyer | A positive integer much less than $1$? I am confused. | |
| Oct 19, 2012 at 12:51 | comment | added | H A Helfgott | Ben: All Spanish names are double-barrelled - in Spanish. Thus, for example, I am Harald Helfgott Seier. You are Benjamín Green ..., actually, I don't know. | |
| Oct 19, 2012 at 12:22 | comment | added | Ben Green | Harald: I think his name is Gonzalo Fiz-Pontiveros. | |
| Oct 19, 2012 at 10:41 | history | answered | H A Helfgott | CC BY-SA 3.0 |