2 papers
math.CO2026
L(3,2,1)-labelings of three classes of 4-valent circulants
Přemysl Holub, Martin Kopřiva
An -labeling of a graph is an assignment of nonnegative integers to vertices such that $\vert f(x)-f(y)\vert > 3-\mbox{dist}_G(x,y)$ for every pair of verti…
math.CO2025
On Sierpiński packing chromatic number and recognition of Sierpiński products
Přemysl Holub, Sandi Klavžar
The Sierpiński product of graphs and with respect to a function has the vertex set . For every …