An automorphism of a graph G =(V,E)is a bijective map φ from V to itself such that φ(vi)φ(vj)∈ E(=)vivj∈ E for any two vertices vi and vj of G.Denote b
The energy levels and binding energies of hydrogenic impurity associated with the ground state and some low-lying states in GaAs/AlGaAs core/shell quantum d