A Universal Method Determining Hawking Effect in Spherically Symmetric or Plane-Symmetric Non-static Space-Times

A universal proof to the new method determining the location and the temperature of event horizons is given. The method is valid to every non-static spherically symmetric or plane-symmetric space-time. An additional term appears in the standard form of wave equation near the event horizon in the spherically symmetric case. The coefficient of this term is just the relative change rate of entropy of the black hole.