Ars Mathematica Contemporanea – Volume 20, Issue 1

Dear Friend,

A new issue of the AMC has been completed and published on-line. Please check the table of contents below.

Enjoy mathematics!

The Editorial Team

Vol. 20, No. 1 (2021) – Table of Contents

Articles

New results on modular Golomb rulers, optical orthogonal codes and related structures
Marco Buratti, Douglas Robert Stinson

A family of fractal non-contracting weakly branch groups
Marialaura Noce

From Farey fractions to the Klein quartic and beyond
Ioannis Ivrissimtzis, David Singerman, James Strudwick

On the incidence maps of incidence structures
Tim Penttila, Alessandro Siciliano

On plane subgraphs of complete topological drawings
Alfredo García Olaverri, Javier Tejel Altarriba, Alexander Pilz

Graphical Frobenius representations of non-abelian groups
Gábor Korchmáros, Gábor Péter Nagy

On few-class Q-polynomial association schemes: feasible parameters and nonexistence results
Alexander L. Gavrilyuk, Janoš Vidali, Jason S. Williford

The enclaveless competition game
Michael A. Henning, Douglas F. Rall

Strongly involutive self-dual polyhedra
Javier Bracho, Luis Montejano, Eric Pauli Pérez, Jorge Luis Ramírez Alfonsín

Geometry of the parallelism in polar spine spaces and their line reducts
Krzysztof Petelczyc, Krzysztof Prażmowski, Mariusz Żynel