2 papers
math.CO2023
On the strength and domination number of graphs
Yukio Takahashi, Rikio Ichishima, Francesc A. Muntaner-Batle
A numbering of a graph of order is a labeling that assigns distinct elements of the set to the vertices of . The strength $\textrm{s…
math.CO2023
Non-isomorphic graphs with common degree sequences
Rikio Ichishima, Francesc A. Muntaner-Batle
For all positive even integers , graphs of order with degree sequence \begin{equation*} S_{n}:1,2,\dots,n/2,n/2,n/2+1,n/2+2,\dots,n-1 \end{equation*} naturally arose in the…