2 papers
math.CO2023
Toughness and distance spectral radius in graphs involving minimum degree
Jing Lou, Ruifang Liu, Jinlong Shu
The toughness $τ(G)=\mathrm{min}\{\frac{|S|}{c(G-S)}: S~\mbox{is a cut set of vertices in}~G\}$ for The concept of toughness initially proposed by Chv$\mathrm{\acute…
math.CO2023
Fractional matching, factors and spectral radius in graphs involving minimum degree
Jing Lou, Ruifang Liu, Guoyan Ao
A fractional matching of a graph is a function such that for any , , where $E_{G}(v)=\{e\in E(G): e~ \mbox{…