Green's Function
Green's Function :
In seismology, the vector displacement field generated by an impulsive force applied at a point in the Earth. When combined with the source function describing the discontinuities in displacement and traction across an internal surface, a Green's function can represent the seismic displacements caused by earthquake faults and explosions. Green's function was first introduced by George Green (1793-1841) as a solution to an inhomogeneous hyperbolic equation for a point source in space and time. See Aki and Richards (2002 or 2009, p. 27-28)
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