  In this paper, we first establish a version of multidimensional analogues of
the refined Bohr's inequality. Then we establish two versions of
multidimensional analogues of improved Bohr's inequality with initial
coefficient being zero. Finally we establish two versions of multidimensional
analogues of improved Bohr's inequality with the initial coefficient being
replaced by absolute value of the function, and to prove that most of the
results are sharp.
