Arithmetic-Geometric Spectral Radius of Trees and Unicyclic Graphs

Ruiling Zheng, Xian, an Jin

The arithmetic-geometric matrix $A_{ag}(G)$ of a graph $G$ is a square matrix, where the $(i,j)$-entry is equal to $\frac{d_i+d_j}{2\sqrt{d_i{d}_j}}$ if the ver…