Timeline for Is there a fixed integer $x>1$ satisfing ${\sigma}^{k}(x)\equiv 0\pmod{x}$ for all positive integers $k$?
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 25, 2015 at 0:33 | history | bounty ended | CommunityBot | ||
| Jul 23, 2015 at 23:53 | vote | accept | zeraoulia rafik | ||
| Jul 23, 2015 at 14:31 | vote | accept | zeraoulia rafik | ||
| Jul 23, 2015 at 23:53 | |||||
| Jul 22, 2015 at 0:18 | comment | added | Gerhard Paseman | Wow @Gerry, thanks for the link! I will peruse the paper more closely, but on first skimming, I don't see any remarks that say the paper's results apply to $\sigma$. I do find a 1991 paper on $\omega$ that looks interesting though. Gerhard "Deeper Into The Rabbit Hole" Paseman, 2015.07.21 | |
| Jul 21, 2015 at 23:53 | comment | added | Gerry Myerson | Curiously, the MR entry for the Katai paper discusses only iterates of $\phi$, and never mentions $\sigma$. The paper appears to be freely available at siauliaims.su.lt/pdfai/2009/Katai-09.pdf | |
| Jul 21, 2015 at 22:09 | history | edited | Gerhard Paseman | CC BY-SA 3.0 |
deleted 1 character in body
|
| Jul 21, 2015 at 21:53 | history | answered | Gerhard Paseman | CC BY-SA 3.0 |