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Apr 13, 2017 at 12:58 history edited CommunityBot
replaced http://mathoverflow.net/ with https://mathoverflow.net/
Aug 13, 2011 at 7:20 comment added Péter Komjáth I am not familiar with Hua's or other people's proofs, but they may well be ineffective, as they most probably use the Siegel-Walfisz theorem, which is ineffective. This was the case with Vinogradov's original proof of the odd Goldbach conjecture.
Aug 12, 2011 at 13:13 history edited user16007 CC BY-SA 3.0
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Aug 12, 2011 at 13:13 comment added user16007 Yes you are correct!
Aug 12, 2011 at 10:19 comment added Sylvain JULIEN I guess you mean $\sum_{i=1}^{t}p_{i}^{k}=N$ ?
Aug 12, 2011 at 9:51 history edited user16007 CC BY-SA 3.0
added 81 characters in body
Aug 12, 2011 at 9:33 history asked user16007 CC BY-SA 3.0