20 citations · 41 across the 40 of their papers we have counts for
Showing 2021Show all
3 papers · 1 filter
math.CO2021
On the maximal -spectral radius of graphs with given matching number
Xiying Yuan, Zhenan Shao
Let be the set of graphs of order with given matching number . Let be the diagonal matrix of the degrees of the graph and be the adjace…
math.CO2021
Some signed graphs whose eigenvalues are main
Zhenan Shao, Xiying Yuan
Let be a graph. For a subset of , the switching of is the signed graph obtained from by reversing the signs of all edges between and $V(G)\setmi…
math.CO2021
Nordhaus-Gaddum type inequality for the fractional matching number of a graph
Ting Yang, Xiying Yuan
The fractional matching number of a graph G, is the maximum size of a fractional matching of G. The following sharp lower bounds for a graph G of order n are proved, and all extrem…