  Within the framework of the theory of the column and row determinants, we
obtain determinantal representations of the Drazin inverse for Hermitian matrix
over the quaternion skew field. Using the obtained determinantal
representations of the Drazin inverse we get explicit representation formulas
(analogs of Cramer's rule) for the Drazin inverse solutions of quaternion
matrix equations $ {\bf A}{\bf X} = {\bf D}$, $ {\bf X}{\bf B} = {\bf D} $ and
${\bf A} {\bf X} {\bf B} = {\bf D} $, where $ {\bf A}$, ${\bf B}$ are
Hermitian.
