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Prime numbers, diophantine equations, diophantine approximations, analytic or algebraic number theory, arithmetic geometry, Galois theory, transcendental number theory, continued fractions
12
votes
4
answers
3k
views
Is there a set of positive integers of density 1 which contains no infinite arithmetic progr...
Let $V$ be a set of positive integers whose natural density is 1. Is it necessarily true that $V$ contains an infinite arithmetic progression?—i.e., that there are non-negative integers $a,b,\nu$ with …
6
votes
2
answers
336
views
Existence of radial limits of products of certain power series and $1-x$
Let $V$ be an arbitrary set of infinitely many positive integers, and let: $$\varsigma_{V}\left(z\right)\overset{\textrm{def}}{=}\sum_{v\in V}z^{v}$$ Let $T_{V}$ denote the set of all $t\in\left[0,1\r …
0
votes
1
answer
176
views
Any ideas for the following limit of partial sums of binomial coefficients?
Let $a$ be an odd integer $≥3$. It appears that: $$\lim_{n\rightarrow\infty}\frac{1}{2^{n}}\sum_{m=0}^{\left\lfloor n\frac{\ln2}{\ln a}\right\rfloor }\binom{n}{m}=\begin{cases}
1 & \textrm{if }a=3\\
0 …
0
votes
0
answers
98
views
Proportionality constant for the growth rate of $\zeta\left(s\right)$ along the imaginary axis
Going through what it says on page 95 of Titchmarsh's book on the Zeta function, and using his remark about $\mu$ at the bottom of that page, I conclude that there is some constant $C>0$ so that: $$\l …
3
votes
2
answers
446
views
On the relation between the asymptotics of a Dirichlet series' coefficients and the series' ...
There is a wonderful series of articles by Flajolet et. al. about Mellin Transforms and the asymptotic analysis of generating functions. In particular, on page 45 of the article Mellin Transforms and …