▎ 摘　　要

The results of the Monte Carlo simulations of graphene with structural defects are presented. The calculations are performed within an effective quantum field theory with non-compact 3 + 1-dimensional Abelian gauge field and 2 + 1-dimensional Kogut-Susskind fermions. It was found that defects shift the semimetal-insulator phase transition point towards higher values of a substrate permittivity.