Timeline for Sharp upper bounds for sums of the form $\sum_{p \mid k} \frac{1}{p+1}$
Current License: CC BY-SA 2.5
11 events
| when toggle format | what | by | license | comment | |
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| Nov 17, 2010 at 0:40 | vote | accept | user02138 | ||
| Nov 4, 2010 at 8:05 | vote | accept | user02138 | ||
| Nov 4, 2010 at 8:06 | |||||
| Nov 1, 2010 at 2:17 | vote | accept | user02138 | ||
| Nov 1, 2010 at 2:18 | |||||
| Nov 1, 2010 at 1:53 | answer | added | user02138 | timeline score: 1 | |
| Oct 29, 2010 at 2:42 | history | edited | user02138 | CC BY-SA 2.5 |
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| Oct 25, 2010 at 3:04 | history | edited | user02138 | CC BY-SA 2.5 |
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| Oct 25, 2010 at 0:36 | comment | added | George Lowther | This was also asked on math.SE math.stackexchange.com/questions/7569/… | |
| Oct 24, 2010 at 22:09 | answer | added | Aaron Meyerowitz | timeline score: 1 | |
| Oct 23, 2010 at 23:43 | comment | added | Gerry Myerson | A reference for the result Fedor mentions is O. Izhboldin and L. Kurliandchik, Unit fractions, Proc. St. Petersburg Math. Soc. 3 (1995) 193--200. This appears in English translation in Amer. Math. Soc. Translations, Series 2, 166. | |
| Oct 23, 2010 at 19:50 | comment | added | Fedor Petrov | It is known (and hard) that if $\sum 1/n_i<1$ for positive integers $n_i$ ($i=1,2,\dots,k$), then $\sum_{i=1}^k 1/n_i\leq \sum_{i=1}^k 1/d_i$, where $d_1=2$, $d_{n+1}=d_1d_2\dots d_n+1$. | |
| Oct 23, 2010 at 18:25 | history | asked | user02138 | CC BY-SA 2.5 |