collaborators

5 papers

math.CO2026

On the hamiltonicity problem of bicirculants: a reduction to cyclic Haar graphs

Simona Bonvicini, Tomaž Pisanski, Arjana Žitnik

A bicirculant is a regular graph that admits an automorphism having two vertex-orbits of the same size. A bicirculant can be described as follows. Given an integer and se…

math.CO2025

The Grünbaum--Rigby configuration as a special Kárteszi configuration

Gábor Gévay, György Kiss, Tomaž Pisanski

In 1990, Branko Grünbaum and John Rigby presented a 4-configuration, known today as the \emph{Grünbaum--Rigby configuration}; it is denoted by . Independently…

math.CO2025

The Möbius-Kantor graph is a faithful unit-distance graph

Nino Bašić, Gábor Gévay, Tomaž Pisanski

In this paper, it has been shown that the generalized Petersen graph , also known as the Möbius-Kantor graph, admits a faithful unit-distance representation in…

math.CO2025

Polycyclic Geometric Realizations of the Gray Configuration

Leah Wrenn Berman, Gábor Gévay, Tomaž Pisanski

The Gray configuration is a (27_3) configuration which typically is realized as the points and lines of the 3 x 3 x 3 integer lattice. It occurs as a member of an infinite family o…

math.CO2025

Classification of quartic bicirculant nut graphs

Ivan Damnjanović, Nino Bašić, Tomaž Pisanski +1

A graph is called a nut graph if zero is its eigenvalue of multiplicity one and its corresponding eigenvector has no zero entries. A graph is a bicirculant if it admits an automorp…