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Timothy Foo's user avatar
Timothy Foo's user avatar
Timothy Foo
  • Member for 13 years, 2 months
  • Last seen more than 11 years ago
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Analogues of Jacobsthal's function
Thank you very much for the extra answer, Gerhard Paseman. Definitely appreciate it!
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Shortest interval over which there are more quadratic residues than nonresidues
Thanks so much for your comment. I actually saw your question but couldn't say anything noteworthy about it off the top of my head. What wonderful implications what you wrote has. I hope that there will be more interesting facts that will emerge, whether on MO or not, in regards to this topic. Thanks again.
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Can the relative count of the primefactors in $\small \lim_{w\to\infty}\prod_{k=1}^w (p_k-1) $ be determined analytically?
Oh, thanks very much! If there is more to say about the general case, I'll let you know!
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On the least prime in arithmetic progressions
I'd guess that you could try to plug in the relevant values into the explicit formula (for example see equation (2) here: math.ubc.ca/~gerg/teaching/613-Winter2011/LinnikTheorem.pdf) and do the computations, but I'll leave a more authoritative statement on this to the experts.
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Bounding Euler products (or almost) by products of zeta functions
I'll delete my answer as I don't think it was helpful. I'm sorry for trying to answer before thinking enough about it!
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Reference request: Dickman, On the frequency of numbers containing prime factors
How about the following paper of A. Granville, "Smooth numbers: computational number theory and beyond" ? Link: dms.umontreal.ca/~andrew/PDF/msrire.pdf
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Bound the error in estimating a relative totient function
Hi...would this question I asked recently help? mathoverflow.net/questions/88174/… Taking $n$ as the product of all primes up to $x^{1/2}$ and applying Prime Number Theorem and Merten's theorem gives error asymptotic to constant times $x/\log x$, whereas $k$ is only $\pi(x^{1/2})$.
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random hyperharmonic series
This looks quite relevant to a question I was asking...The paper says that $\sum_{n}\frac{\epsilon_n}{n}$ converges almost surely. Does that remain true if the $\epsilon_n$ can be $0$, but the nonzero $\epsilon_n$ are $\pm 1$ with equal probability?
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