  A simple exact analytical solution of the relativistic Duffin-Kemmer-Petiau
equation within the framework of the asymptotic iteration method is presented.
Exact bound state energy eigenvalues and corresponding eigenfunctions are
determined for the relativistic harmonic oscillator as well as the Coulomb
potentials. As a non-trivial example, the anharmonic oscillator is solved and
the energy eigenvalues are obtained within the perturbation theory using the
asymptotic iteration method.
