Abstract: | In this article, we present a Schwarz lemma at the boundary for pluriharmonic mappings from the unit polydisk to the unit ball, which generalizes classical Schwarz lemma for bounded harmonic functions to higher dimensions. It is proved that if the pluriharmonic mapping
is
at
with f(0)= 0 and
for any n, N ≥ 1, then there exist a nonnegative vector
satisfying
such that
where
and
are real versions of z0 and w0, respectively. |