Graphene and other nanostructures belong to the center of interest of today's
physics research. The local density of states of the graphitic nanocone
influenced by the spin-orbit interaction was calculated. Numerical calculations
and the Green function approach were used to solve this problem. It was proven
in the second case that the second order pproximation is not sufficient for
this purpose.Comment: 5 pages, 9 figures; conference contribution in Mathematical Modeling
and Computational Physics, July 201
