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Dec 12, 2017 at 3:01 history edited Hu xiyu CC BY-SA 3.0
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Dec 12, 2017 at 3:00 comment added Hu xiyu @JoelMoreira, yes you are right! I have corrected.
Dec 11, 2017 at 22:49 comment added Joel Moreira In Problem 2 you're taking the limit as $N\to\infty$ on the left hand side, so it's strange to also have $N$ on the right. Perhaps you want to divide by $N^{1/k}$ on the left instead?
Dec 11, 2017 at 19:52 history edited Hu xiyu CC BY-SA 3.0
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Dec 11, 2017 at 11:48 comment added Gerry Myerson @François, OK, but then OP writes, "for ${\bf N}^*$ I mean integer number," so it looks like $\bf Z$ is meant. But then when OP edited, ${\bf N}^*$ became $\bf N$, so what's really meant is anybody's guess.
Dec 11, 2017 at 9:08 comment added François Brunault @Gerry Myerson In French at least $\mathbb{N}^*$ often denotes the nonzero natural numbers.
Dec 11, 2017 at 5:27 history edited Hu xiyu CC BY-SA 3.0
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Dec 11, 2017 at 5:27 comment added Hu xiyu @GerryMyerson, this is an embarrassed mistake... I always use this notation... created, thanks!
Dec 11, 2017 at 5:12 comment added Gerry Myerson I've seen $\bf N$ used for the natural numbers, and $\bf Z$ for the integers, but what's the rationale beind using ${\bf N}^*$ for the integers?
Dec 11, 2017 at 4:22 history edited Hu xiyu CC BY-SA 3.0
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Dec 11, 2017 at 3:38 history edited Hu xiyu CC BY-SA 3.0
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Dec 11, 2017 at 3:07 comment added Hu xiyu @GerryMyerson, corrected, for $\mathbb N^*$ I mean integer number and I assume both $Q(n),P(n)$ have integer coefficients.
Dec 11, 2017 at 3:05 history edited Hu xiyu CC BY-SA 3.0
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Dec 10, 2017 at 22:13 comment added Gerry Myerson I don't know what ${\bf N}^*$ is. Also, in Problem 1, presumably you want $Q$ to have integer coefficients?
Dec 10, 2017 at 16:26 history edited Hu xiyu CC BY-SA 3.0
deleted 3 characters in body; edited title
Dec 10, 2017 at 16:10 history asked Hu xiyu CC BY-SA 3.0