Skip to main content

All Questions

Filter by
Sorted by
Tagged with
1 vote
1 answer
282 views

Robin's inequality for odd numbers

In this article (Theorem 1.2) there is a proof for Robin's inequality for odd numbers, $\sigma(n)/n< e^{\gamma}\log(\log(n))$ where $\gamma$ is the Euler-Mascheroni constant and $\sigma(n)$ is the ...
Asanovic Tomas's user avatar
3 votes
0 answers
189 views

Largest observed value of $S(t)$

Let $S(t)$ be the deviation of the number of zeros of the Riemann zeta function up to height $t$ from the expectation. What is the largest observed value of $S(t)$ today? Here is a quote from a ...
Farzad Aryan's user avatar
12 votes
0 answers
1k views

Euler's totient function and Riemann hypothesis

I am looking for an upper-bound of the Euler's totient function $\varphi$ which would be equivalent to the Riemann hypothesis (RH). There is the following Nicolas' criterion about primorial numbers $...
Sebastien Palcoux's user avatar
17 votes
2 answers
1k views

Analogues of the Riemann zeta function that are more computationally tractable?

Many years ago, I was surprised to learn that Andrew Odlyzko does not consider the existing computational evidence for the Riemann hypothesis to be overwhelming. As I understand it, one reason is as ...
Timothy Chow's user avatar
  • 82.7k
12 votes
2 answers
823 views

GRH and the rank of elliptic curves

I have been using the Magma calculator recently, and while calculating ranks of elliptic curves with very big coefficients, there is a possibility to assume GRH is true, which signaficantly speeds up ...
FusRoDah's user avatar
  • 3,738