▎ 摘　　要

We have theoretically studied the properties of excitons in multilayer graphene in the ground state by using the method of linear combination operator and unitary transformation. It is found that the LA phonon sound velocity (c(L)) and the effective interaction potential (V-I) are significantly affected by the number of layers (N) when N < 6, but when N > 6, the effect is not obvious. However, the effect of N on exciton self-trapping energy (E-tr) and coupling parameters alpha(j) is not obvious.