# Research: Number Theory

## Research

#### Fractional Derivatives of the Riemann Zeta Function

The video below shows the α-th Grünwald-Letnikov fractional derivative of the Riemann Zeta Function ζ(s) for α between 0 and 10 on…

#### Interactive Sieve of Eratosthenes

Explore the sieve of Eratosthenes. Click on a number to have all its multiples marked by changing the field color to red…

#### Well-rounded forms and the Voronoi tessellation

One identifies the space of binary quadratic forms with the upper half plane $\mathfrak{h}$. The set of well-rounded forms corresponds to an…

#### Hermite Constants for Real Quadratic Fields

The Hermite constant for the ring of integers in real quadratic fields $\mathbb{Q}(\sqrt{d})$ for square-free positive integers $d$ are plotted above. The…

#### Extensions of the $p$-adic field $\mathbb{Q}_p$ with Galois group $E_1$

Let $p$ be an odd prime number. The graph shows the subgroup lattice of the group $E_1$, which is the unique non-abelian…

#### Congruence Subgroups of $\textrm{PSL}(2,\mathbb{Z})$

^ Level 19 Name Index  con  len  c2  c3 > Cusps Gal  Supergroups  Subgroups 19A14 285 1 285 5 6 1915 61  91  1815 19A2…

#### Involve — a journal of mathematics

The mathematics journal Involve is dedicated to showcasing and encouraging high quality mathematical research involving students (at all levels). The editorial board consists of…

#### Riemann zeta Function $\zeta$ and its Derivative $\zeta’$

The absolute value of the Riemann zeta function $\zeta(\sigma+it)$ for $0 \le \sigma \le 8$ and $0.1 \le t \le 60$ over…

#### Zeros and Zero-Free Regions of $\zeta^{(38)}$

The plot shows the distribution of the zeros of the 38th derivative of the Riemann zeta function on the complex plane with…

#### Zeros of the derivatives of the Riemann zeta function

The plot shows zeros k of the derivatives $\zeta^{(k)}(\sigma+it)$ of the Riemann Zeta functionon the complex plane. In 1965 Spira had already…