Changxiang He

activity

20162023

most citedLaplacian spectral characterization of roses

11 citations · 11 across the 8 of their papers we have counts for

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Showing 2022Show all

2 papers · 1 filter

math.CO2022

Maximum principal ratio of the signless Laplacian of graphs

Lele Liu, Shengming Hu, Changxiang He

Let $G$ be a connected graph and $Q (G)$ be the signless Laplacian of $G$ . The principal ratio $γ (G)$ of $Q (G)$ is the ratio of the maximum and minimum entries of the Perron vector…

math.CO2022

Some multivariable Rado numbers

Gang Yang, Yaping Mao, Changxiang He +1

The Rado number of an equation is a Ramsey-theoretic quantity associated to the equation. Let $E$ be a linear equation. Denote by $R_{r} (E)$ the mi…