PHYSICA A, cilt.234, sa.3-4, ss.807-818, 1997 (SCI-Expanded)
The two-dimensional Ising model with nearest- and next-nearest-neighbor antiferromagnetic interactions of ratio R is simulated on the Creutz cellular automaton. The values of the critical temperature and the critical exponents for O less than or equal to R < 1/2 are estimated within the framework of the finite size scaling theory. The dependence of T-c on R agrees with the crossover scaling theory for phi = gamma = 1.75. The results for 0 < R < 1/2 are compatible with Ising critical behavior.