S. Cichacz

activity

20082026

most citedDistance magic labeling and two products of graphs

20 citations · 124 across the 27 of their papers we have counts for

collaborators

Showing 2023Show all

3 papers · 1 filter

math.CO2023

Minimum $k$ -critical-bipartite graphs: the irregular Case

Sylwia Cichacz, Agieszka Görlich, Karol Suchan

We study the problem of finding a minimum $k$ -critical-bipartite graph of order $(n, m)$ : a bipartite graph $G = (U, V; E)$ , with $∣ U ∣ = n$ , $∣ V ∣ = m$ , and $n > m > 1$ , which is $k$ -critical-bi…

math.CO2023★ 1 cited

Group irregularity strength of disconnected graphs

Sylwia Cichacz, Barbara Krupińska

We investigate the \textit{group irregular strength} $(s_{g} (G))$ of graphs, i.e the smallest value of $s$ such that for any Abelian group $Γ$ of order $s$ exists a function $g\colon…

math.CO2023

Irregular labeling on Abelian groups of digraphs

Sylwia Cichacz

Let $G$ be a directed graph of order $n$ with no component of order less than $4$ , and let $Γ$ be a finite Abelian group such that $∣Γ∣ \geq n + 6$ . We show that ther…

Minimum k-critical-bipartite graphs: the irregular Case

Group irregularity strength of disconnected graphs

Irregular labeling on Abelian groups of digraphs

Minimum $k$ -critical-bipartite graphs: the irregular Case