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Sep 4, 2012 at 5:23 vote accept user26147
Sep 3, 2012 at 10:53 history edited js21 CC BY-SA 3.0
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Sep 3, 2012 at 6:41 history edited js21 CC BY-SA 3.0
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Sep 3, 2012 at 3:02 comment added Stanley Yao Xiao One can obtain that as a lower bound fairly easily; but it is certainly not true as an upper bound. For instance the set of integers is an additive basis of any order, but is much denser than that.
Sep 2, 2012 at 18:56 comment added user26147 @js: out of curiosity, what is the simple counting argument for X^{1/k + o(1)} ?
Sep 2, 2012 at 13:43 history edited js21 CC BY-SA 3.0
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Sep 2, 2012 at 10:20 history answered js21 CC BY-SA 3.0