In this paper‎, ‎the characteristic polynomial and the spectrum of the terminal distance matrix for some Kragujevac trees is computed. ‎As Application‎, ‎we obtain an upper bound and a lower bound for the spectral radius ...

The Gutman index and Schultz index are two topological indices‎. ‎In this paper‎, ‎we first give exact formulae for the expected values of the Gutman index and Schultz index of random phenylene chains‎, ‎and we will also ...