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The Riemann zeta function is the function of one complex variable $s$ defined by the series $\zeta(s) = \sum_{n \geq 1} \frac{1}{n^s}$ when $\operatorname{Re}(s)>1$. It admits a meromorphic continuation to $\mathbb{C}$ with only a simple pole at $1$. This function satisfies a functional equation relating the values at $s$ and $1-s$. This is the most simple example of an $L$-function and a central object of number theory.

-3 votes
0 answers
70 views

Is the upper bound on $H_{1}$ a decreasing function of the proportion of critical zeros of Z...

This question stems from https://arxiv.org/abs/2411.19762 and the numerical observation that the best unconditional upper bound for $H_{1}:=\lim\inf_{n\to\infty}p_{n+1}-p_{n}$, namely $H_{1}^{\flat}=2 …
12 votes
2 answers
1k views

Has there been further work on Bender-Brody-Müller approach to RH?

Earlier this year (April 4, 2017), a seemingly tantalizing approach of the Riemann Hypothesis based on ideas dating back to Hilbert and Pólya by Bender, Brody and Müller was made publicly available. I …
-4 votes

Functional equation and/or growth estimates for a shifted L function

This preprint by Kaczorowski and Perelli may contain the pieces of information you're looking for: https://arxiv.org/abs/1911.10497
Sylvain JULIEN's user avatar
1 vote
0 answers
150 views

Do we believe that the distribution of spacings of successive critical zeros of zeta is log-...

Let $\gamma^{+}(T)$ be the imaginary part of the critical zero of $\zeta$ closest to $1/2+iT$ with $\gamma^{+}(T)\ge T$ and define similarly $\gamma^{-}(T)$ with a reversed inequality. Let $g(T)$ be t …
2 votes
0 answers
135 views

What is the best known upper bound for $( \gamma_{n+1}-\gamma_{n})\max_{\{T\in(\gamma_{n},\g...

For $ n $ a positive integer, denote by $ L(n) : =\gamma_{n+1}-\gamma_{n} $ with $ \gamma_{n} $ the imaginary part of the $ n $-th critical zero of the Riemann zeta function and by $ M(n) : =\max …
2 votes

On the real part of the Riemann zeta function inside the critical strip

See https://www.researchgate.net/publication/321187136_Pair_Correlation_of_Zeros_of_the_Real_and_Imaginary_Parts_of_the_Riemann_Zeta-Function where the authors investigate the behavior of the real an …
Sylvain JULIEN's user avatar
0 votes
2 answers
267 views

Is the number of real values of Zeta on the critical line up to some ordinate known?

The famous plot of $\zeta(1/2+it)$ for real $t$ seems to show that this function gets a non zero real value exactly once between two consecutive Riemann zeros. Moreover, letting $\rho_{i}$ the $i$-th …
1 vote

Asymptotic number of zeros for Dirichlet series with functional equation

See the theorem 2.15 in the survey of the Selberg class by Li ZHENG. https://www.researchgate.net/publication/265103975_A_CONCISE_SURVEY_OF_THE_SELBERG_CLASS_OF_L-FUNCTIONS
Sylvain JULIEN's user avatar
1 vote
1 answer
243 views

Do we know an upper bound for the number of possible real parts of the non trivial zeroes of...

Let $n_{\zeta}$ denote the number of possible real parts for the non trivial zeroes of the Riemann Zeta function. RH is equivalent to $n_{\zeta}=1$, and the symmetry arising from the functional equati …
19 votes
3 answers
6k views

Are the nontrivial zeros of the Riemann zeta simple?

A few years ago, I found on arXiv an article in which the authors (I think they were at least two to write it) claimed to have proven that the non trivial zeros of the Riemann zeta function were all s …
3 votes

Can Voronin's universality theorem be used to show that $\sigma\circ\zeta=\zeta\circ\sigma$ ...

I apologize for answering my own question, but it has turned out that the statement I consider can actually be proved without using Voronin's theorem. Here comes an excerpt from an article of mine en …
Sylvain JULIEN's user avatar
6 votes
1 answer
278 views

Can Voronin's universality theorem be used to show that $\sigma\circ\zeta=\zeta\circ\sigma$ ...

Let $\sigma$ be a field automorphism of $\mathbb{C}$ that commutes with the Riemann Zeta function. Can we use Voronin's universality theorem to prove that $\sigma$ is necessarily continuous? Thanks in …
3 votes
1 answer
727 views

what would be the consequences on the distribution of primes of $\Lambda=\infty$?

It is widely believed that the quantity $\Lambda:=\lim\sup\dfrac{t_{n+1}-t_{n}}{2\pi/\log t_{n}}$, where $t_{n}$ is the imaginary part of the $n$-th non-trivial zero on the critical line of the Rieman …
1 vote
0 answers
172 views

Do we know a lower bound for the number of critical zeros of the Riemann zeta-function with ...

If I'm not mistaken, the imaginary parts of the critical zeros of the Riemann Zeta function are conjectured to be linearly independent over $\mathbb{Q}$, but I think we're very far from proving such a …
0 votes
2 answers
323 views

What is known about the set $S$ of couples of rationals $(q,q')$ such that $\zeta(q+iq')$ is...

The question is the title. For example, if we could show that $S$ is finite, then this would entail that every large enough integer $n$ is such that $\zeta(2n+1)$ is irrational and that, under RH, alm …

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