Im. Nefedov et Ia. Shereshevskii, Solving the difference initial-boundary value problems by the operator exponential method, J NONL M PH, 8(3), 2001, pp. 313-324
We suggest a modi cation of the operator exponential method for the numeric
al solving the difference linear initial boundary value problems. The schem
e is based on the representation of the difference operator for given bound
ary conditions as the perturbation of the same operator for periodic ones.
We analyze the error, stability and efficiency of the scheme for a model ex
ample of the one-dimensional operator of second difference.