  We calculate one-loop radiative correction to the mass of Higgs identified
with the extra space components of the gauge field in a six dimensional massive
scalar QED compactified on a two-sphere. The radiatively induced Higgs mass is
explicitly shown to be finite for arbitrary bulk scalar mass M. Furthermore,
the remaining finite part also turns out to vanish, at least for the case of
small M, thus suggesting that the radiatively induced Higgs mass exactly
vanishes, in general. The non-zero "Kaluza-Klein" modes in the gauge sector are
argued to have a Higgs-like mechanism and quantum mechanical N=2 supersymmetry,
while the Higgs zero modes, as supersymmetric states, have a close relation
with monopole configuration.
