  Uniaxially anisotropic Heisenberg ferromagnet, in the presence of a magnetic
fieldvarying sinusoidally in time, is studied by Monte Carlo Simulation. The
axial (field applied only along the direction of anisotropy) and off-axial
(field applied only along the direction which is prependicular to the direction
of anisotropy) dynamic transitions are studied. By studying the distribution of
the dynamic order parameter component, it is observed that the axial transition
is discontinuous for low anisotropy and becomes continuous in high anisotropy.
The off-axial transition is found to be continuous for all values of
anisotropy. In the infinite anisotropy limit, both types of transitions are
compared with athat observed in an Ising ferromagnet for the same value of the
field and frequency. The infinitely anisotropic axial transition and dynamic
transition in the Ising ferromagnet occur at different temperatures, whereas
the infinitely anisotropic off-axial transition and the equilibrium ferro-para
transition in the Ising model occur at the same temperature.
