  We consider an exterior electromagnetic field surrounding a rotating star
endowed with a dipole magnetic field in the context of general relativity.
  The analytic solution for a stationary configuration is obtained, and the
general relativistic modifications and the implications for pulsar radiation
are investigated in detail. We find that the general relativistic corrections
of both the electric field strength and the curvature radii of magnetic field
lines tend to enhance the curvature radiation photon energy.
