Vol 20, No 1 (2021)

DOI: https://doi.org/10.26493/1855-3974.20_1

Table of Contents

Articles

New results on modular Golomb rulers, optical orthogonal codes and related structures
Marco Buratti, Douglas Robert Stinson
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1-27
A family of fractal non-contracting weakly branch groups
Marialaura Noce
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29-36
From Farey fractions to the Klein quartic and beyond
Ioannis Ivrissimtzis, David Singerman, James Strudwick
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37-50
On the incidence maps of incidence structures
Tim Penttila, Alessandro Siciliano
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51-68
On plane subgraphs of complete topological drawings
Alfredo García Olaverri, Javier Tejel Altarriba, Alexander Pilz
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69-87
Graphical Frobenius representations of non-abelian groups
Gábor Korchmáros, Gábor Péter Nagy
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89-102
On few-class Q-polynomial association schemes: feasible parameters and nonexistence results
Alexander L. Gavrilyuk, Janoš Vidali, Jason S. Williford
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103-127
The enclaveless competition game
Michael A. Henning, Douglas F. Rall
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129-142
Strongly involutive self-dual polyhedra
Javier Bracho, Luis Montejano, Eric Pauli Pérez, Jorge Luis Ramírez Alfonsín
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143-149
Geometry of the parallelism in polar spine spaces and their line reducts
Krzysztof Petelczyc, Krzysztof Prażmowski, Mariusz Żynel
PDF ABSTRACTS (EN/SI)
151-170

News and Photos

Jonathan E. Leech: Noncommutative Lattices: Skew Lattices, Skew Boolean Algebras and Beyond
Announcement ​
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Petra Šparl Award 2022: Call for Nominations
Announcement ​
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