<正> Taking into account the quantum size effect and the spin dependence of the electronic band structure,and including the spin dependence of the scattering fr
<正> In this paper,based on the adjacency matrix of the network and its powers,the formulas are derived for theshortest path and the average path length,and an
<正> The concept of approximate generalized conditional symmetry(AGCS)for the perturbed evolution equa-tions is introduced,and how to derive approximate conditi