activity
20232025
collaborators

6 papers

math.NT2025

On denominators of consecutive -saturated Farey fractions

Jack Anderson, Florin P. Boca, Cristian Cobeli +1

The sequence of -saturated Farey fractions was defined in our previous work by ${\mathscr S}_Q := \{ a/q \in {\mathbb Q} \cap…

math.NT2025

On the distribution of -saturated Farey fractions

Jack Anderson, Florin P. Boca, Cristian Cobeli +1

We consider the set of Farey fractions of order with the property that there exists a matrix $\left( \begin{smallmatrix} a & b \\ c & d \end{smallmatrix}…

math.NT2024

Arithmetic Polygons and Sums of Consecutive Squares

Jack Anderson, Amy Woodall, Alexandru Zaharescu

We introduce and study arithmetic polygons. We show that these arithmetic polygons are connected to triples of square pyramidal numbers. For every odd , we prove that there…

math.NT2023

Angular distribution towards the points of the neighbor-flips modular curve seen by a fast moving observer

Jack Anderson, Florin P. Boca, Cristian Cobeli +1

Let be a fixed non-zero integer. For every and every prime , consider the angles between rays from an observer located at the point on the…

math.CO2023

Counterintuitive patterns on angles and distances between lattice points in high dimensional hypercubes

Jack Anderson, Cristian Cobeli, Alexandru Zaharescu

Let be a finite set of integer points in , which we assume has many symmetries, and let be a fixed point. We calculate the distances…

math.NT2023

Distribution of angles to lattice points seen from a fast moving observer

Jack Anderson, Florin P. Boca, Cristian Cobeli +1

We consider a square expanding with constant speed seen from an observer moving away with constant acceleration and study the distribution of angles between rays from the observer…